23311231120 has 20 divisors (see below), whose sum is σ = 54198612540. Its totient is φ = 9324492416.

The previous prime is 23311231091. The next prime is 23311231213. The reversal of 23311231120 is 2113211332.

It can be written as a sum of positive squares in 2 ways, for example, as 16054917264 + 7256313856 = 126708^2 + 85184^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145695115 + ... + 145695274.

It is an arithmetic number, because the mean of its divisors is an integer number (2709930627).

Almost surely, 2^23311231120 is an apocalyptic number.

23311231120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23311231120 is an abundant number, since it is smaller than the sum of its proper divisors (30887381420).

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

23311231120 is a wasteful number, since it uses less digits than its factorization.

23311231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291390402 (or 291390396 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23311231120 its reverse (2113211332), we get a palindrome (25424442452).

The spelling of 23311231120 in words is "twenty-three billion, three hundred eleven million, two hundred thirty-one thousand, one hundred twenty".