23311212102 has 24 divisors (see below), whose sum is σ = 52378280136. Its totient is φ = 7770403872.

The previous prime is 23311212019. The next prime is 23311212131. The reversal of 23311212102 is 20121211332.

23311212102 is a `hidden beast` number, since 2 + 331 + 121 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23982243 + ... + 23983214.

It is an arithmetic number, because the mean of its divisors is an integer number (2182428339).

Almost surely, 2^23311212102 is an apocalyptic number.

23311212102 is an abundant number, since it is smaller than the sum of its proper divisors (29067068034).

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

23311212102 is an equidigital number, since it uses as much as digits as its factorization.

23311212102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47965474 (or 47965462 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23311212102 its reverse (20121211332), we get a palindrome (43432423434).

The spelling of 23311212102 in words is "twenty-three billion, three hundred eleven million, two hundred twelve thousand, one hundred two".