23311121210 has 16 divisors (see below), whose sum is σ = 45187712136. Its totient is φ = 8607183168.

The previous prime is 23311121201. The next prime is 23311121213. The reversal of 23311121210 is 1212111332.

It can be written as a sum of positive squares in 4 ways, for example, as 17904313249 + 5406807961 = 133807^2 + 73531^2 .

It is not an unprimeable number, because it can be changed into a prime (23311121213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89658029 + ... + 89658288.

Almost surely, 2^23311121210 is an apocalyptic number.

23311121210 is a deficient number, since it is larger than the sum of its proper divisors (21876590926).

23311121210 is a wasteful number, since it uses less digits than its factorization.

23311121210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179316337.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 23311121210 its reverse (1212111332), we get a palindrome (24523232542).

The spelling of 23311121210 in words is "twenty-three billion, three hundred eleven million, one hundred twenty-one thousand, two hundred ten".