23121434033990 has 16 divisors (see below), whose sum is σ = 41646569573952. Its totient is φ = 9242353988544.

The previous prime is 23121434033989. The next prime is 23121434034029. The reversal of 23121434033990 is 9933043412132.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 777437519 + ... + 777467258.

It is an arithmetic number, because the mean of its divisors is an integer number (2602910598372).

Almost surely, 2^{23121434033990} is an apocalyptic number.

23121434033990 is a deficient number, since it is larger than the sum of its proper divisors (18525135539962).

23121434033990 is a wasteful number, since it uses less digits than its factorization.

23121434033990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554906271.

The product of its (nonzero) digits is 419904, while the sum is 44.

The spelling of 23121434033990 in words is "twenty-three trillion, one hundred twenty-one billion, four hundred thirty-four million, thirty-three thousand, nine hundred ninety".