23040119978 has 4 divisors (see below), whose sum is σ = 34560179970. Its totient is φ = 11520059988.

The previous prime is 23040119969. The next prime is 23040119983. The reversal of 23040119978 is 87991104032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12417313489 + 10622806489 = 111433^2 + 103067^2 .

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760029993 + ... + 5760029996.

Almost surely, 2^23040119978 is an apocalyptic number.

23040119978 is a deficient number, since it is larger than the sum of its proper divisors (11520059992).

23040119978 is a wasteful number, since it uses less digits than its factorization.

23040119978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11520059991.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 23040119978 in words is "twenty-three billion, forty million, one hundred nineteen thousand, nine hundred seventy-eight".