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1223301242031 = 31167779370997
BaseRepresentation
bin10001110011010010011…
…011111001110010101111
311022221112222002211221120
4101303102123321302233
5130020310104221111
62333550555032023
7154244354664201
oct21632233716257
94287488084846
101223301242031
11431887729110
1217910113b613
138b483bbb09b
14432cb030771
1521c4a6a2406
hex11cd26f9caf

1223301242031 has 32 divisors (see below), whose sum is σ = 1806161856768. Its totient is φ = 730225098240.

The previous prime is 1223301241993. The next prime is 1223301242057. The reversal of 1223301242031 is 1302421033221.

It is not a de Polignac number, because 1223301242031 - 217 = 1223301110959 is a prime.

It is a super-2 number, since 2×12233012420312 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1223301241992 and 1223301242010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223301242131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17194825 + ... + 17265821.

It is an arithmetic number, because the mean of its divisors is an integer number (56442558024).

Almost surely, 21223301242031 is an apocalyptic number.

1223301242031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1223301242031 is a deficient number, since it is larger than the sum of its proper divisors (582860614737).

1223301242031 is a wasteful number, since it uses less digits than its factorization.

1223301242031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78871.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1223301242031 its reverse (1302421033221), we get a palindrome (2525722275252).

The spelling of 1223301242031 in words is "one trillion, two hundred twenty-three billion, three hundred one million, two hundred forty-two thousand, thirty-one".

Divisors: 1 3 11 33 67 201 737 2211 7793 23379 70997 85723 212991 257169 522131 780967 1566393 2342901 4756799 5743441 14270397 17230323 52324789 156974367 553279621 1659838863 6086075831 18258227493 37069734607 111209203821 407767080677 1223301242031