23211012144 has 40 divisors (see below), whose sum is σ = 60806322432. Its totient is φ = 7628031040.

The previous prime is 23211012133. The next prime is 23211012157. The reversal of 23211012144 is 44121011232.

It is a self number, because there is not a number n which added to its sum of digits gives 23211012144.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3401964 + ... + 3408779.

Almost surely, 2^23211012144 is an apocalyptic number.

23211012144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

23211012144 is an abundant number, since it is smaller than the sum of its proper divisors (37595310288).

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

23211012144 is a wasteful number, since it uses less digits than its factorization.

23211012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6810825 (or 6810819 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 23211012144 its reverse (44121011232), we get a palindrome (67332023376).

The spelling of 23211012144 in words is "twenty-three billion, two hundred eleven million, twelve thousand, one hundred forty-four".