23311015400 has 48 divisors (see below), whose sum is σ = 57386243340. Its totient is φ = 8775910400.

The previous prime is 23311015363. The next prime is 23311015439. The reversal of 23311015400 is 451011332.

It can be written as a sum of positive squares in 6 ways, for example, as 19116380644 + 4194634756 = 138262^2 + 64766^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 3424691 + ... + 3431490.

Almost surely, 2^23311015400 is an apocalyptic number.

23311015400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23311015400 is an abundant number, since it is smaller than the sum of its proper divisors (34075227940).

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

23311015400 is a wasteful number, since it uses less digits than its factorization.

23311015400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6856214 (or 6856205 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 23311015400 its reverse (451011332), we get a palindrome (23762026732).

The spelling of 23311015400 in words is "twenty-three billion, three hundred eleven million, fifteen thousand, four hundred".