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1203233020231 = 11109384820021
BaseRepresentation
bin10001100000100110010…
…001101101100101000111
311021000202101012112222111
4101200212101231211013
5124203210123121411
62320431351241451
7152634143631004
oct21404621554507
94230671175874
101203233020231
11424319743040
12175240379287
1389606348128
1442345a6a8ab
152147395c721
hex1182646d947

1203233020231 has 4 divisors (see below), whose sum is σ = 1312617840264. Its totient is φ = 1093848200200.

The previous prime is 1203233020189. The next prime is 1203233020261. The reversal of 1203233020231 is 1320203323021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1203233020231 - 219 = 1203232495943 is a prime.

It is a super-2 number, since 2×12032330202312 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203233020261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54692410000 + ... + 54692410021.

It is an arithmetic number, because the mean of its divisors is an integer number (328154460066).

Almost surely, 21203233020231 is an apocalyptic number.

1203233020231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1203233020231 is a deficient number, since it is larger than the sum of its proper divisors (109384820033).

1203233020231 is a wasteful number, since it uses less digits than its factorization.

1203233020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109384820032.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1203233020231 its reverse (1320203323021), we get a palindrome (2523436343252).

The spelling of 1203233020231 in words is "one trillion, two hundred three billion, two hundred thirty-three million, twenty thousand, two hundred thirty-one".

Divisors: 1 11 109384820021 1203233020231