23211002012 has 24 divisors (see below), whose sum is σ = 44577267840. Its totient is φ = 10487275760.

The previous prime is 23211001943. The next prime is 23211002021. The reversal of 23211002012 is 21020011232.

It is a happy number.

It is a super-2 number, since 2×23211002012² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1572062 + ... + 1586757.

It is an arithmetic number, because the mean of its divisors is an integer number (1857386160).

Almost surely, 2^23211002012 is an apocalyptic number.

23211002012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

23211002012 is a deficient number, since it is larger than the sum of its proper divisors (21366265828).

23211002012 is a wasteful number, since it uses less digits than its factorization.

23211002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3159001 (or 3158999 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 23211002012 its reverse (21020011232), we get a palindrome (44231013244).

The spelling of 23211002012 in words is "twenty-three billion, two hundred eleven million, two thousand, twelve".