23102745428 has 24 divisors (see below), whose sum is σ = 46377273600. Its totient is φ = 9864366048.

The previous prime is 23102745409. The next prime is 23102745461. The reversal of 23102745428 is 82454720132.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23102745391 and 23102745400.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1526108 + ... + 1541171.

It is an arithmetic number, because the mean of its divisors is an integer number (1932386400).

Almost surely, 2^23102745428 is an apocalyptic number.

23102745428 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

23102745428 is an abundant number, since it is smaller than the sum of its proper divisors (23274528172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23102745428 is a wasteful number, since it uses less digits than its factorization.

23102745428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3067559 (or 3067557 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 38.

The spelling of 23102745428 in words is "twenty-three billion, one hundred two million, seven hundred forty-five thousand, four hundred twenty-eight".