23213640513 has 8 divisors (see below), whose sum is σ = 35373166528. Its totient is φ = 13264937424.

The previous prime is 23213640509. The next prime is 23213640521. The reversal of 23213640513 is 31504631232.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23213640513 - 2² = 23213640509 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23213640523) 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, 552705706 + ... + 552705747.

It is an arithmetic number, because the mean of its divisors is an integer number (4421645816).

Almost surely, 2^23213640513 is an apocalyptic number.

It is an amenable number.

23213640513 is a deficient number, since it is larger than the sum of its proper divisors (12159526015).

23213640513 is a wasteful number, since it uses less digits than its factorization.

23213640513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1105411463.

The product of its (nonzero) digits is 12960, while the sum is 30.

The spelling of 23213640513 in words is "twenty-three billion, two hundred thirteen million, six hundred forty thousand, five hundred thirteen".