23000311212978 has 64 divisors (see below), whose sum is σ = 50633214452352. Its totient is φ = 6907207802880.

The previous prime is 23000311212947. The next prime is 23000311212979. The reversal of 23000311212978 is 87921211300032.

It is not an unprimeable number, because it can be changed into a prime (23000311212979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57922326 + ... + 58318062.

It is an arithmetic number, because the mean of its divisors is an integer number (791143975818).

Almost surely, 2^{23000311212978} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23000311212978, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25316607226176).

23000311212978 is an abundant number, since it is smaller than the sum of its proper divisors (27632903239374).

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

23000311212978 is a wasteful number, since it uses less digits than its factorization.

23000311212978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403659.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 23000311212978 in words is "twenty-three trillion, three hundred eleven million, two hundred twelve thousand, nine hundred seventy-eight".