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1223102131113 = 3407700710371
BaseRepresentation
bin10001110011000110100…
…100010110101110101001
311022221001002102222010010
4101303012210112232221
5130014403121143423
62333515123242133
7154236416401662
oct21630644265651
94287032388103
101223102131113
114317952a3135
12179066519349
138b451885685
14432ac800369
1521c37e71693
hex11cc6916ba9

1223102131113 has 4 divisors (see below), whose sum is σ = 1630802841488. Its totient is φ = 815401420740.

The previous prime is 1223102131093. The next prime is 1223102131117. The reversal of 1223102131113 is 3111312013221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1223102131113 - 25 = 1223102131081 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1223102131113.

It is not an unprimeable number, because it can be changed into a prime (1223102131117) 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, 203850355183 + ... + 203850355188.

It is an arithmetic number, because the mean of its divisors is an integer number (407700710372).

Almost surely, 21223102131113 is an apocalyptic number.

It is an amenable number.

1223102131113 is a deficient number, since it is larger than the sum of its proper divisors (407700710375).

1223102131113 is an equidigital number, since it uses as much as digits as its factorization.

1223102131113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407700710374.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 1223102131113 its reverse (3111312013221), we get a palindrome (4334414144334).

The spelling of 1223102131113 in words is "one trillion, two hundred twenty-three billion, one hundred two million, one hundred thirty-one thousand, one hundred thirteen".

Divisors: 1 3 407700710371 1223102131113