23415312021 has 8 divisors (see below), whose sum is σ = 31394832480. Its totient is φ = 15522999792.

The previous prime is 23415311963. The next prime is 23415312031. The reversal of 23415312021 is 12021351432.

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

It is not a de Polignac number, because 23415312021 - 2⁶ = 23415311957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23415311982 and 23415312000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23415312031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21801430 + ... + 21802503.

It is an arithmetic number, because the mean of its divisors is an integer number (3924354060).

Almost surely, 2^23415312021 is an apocalyptic number.

It is an amenable number.

23415312021 is a deficient number, since it is larger than the sum of its proper divisors (7979520459).

23415312021 is a wasteful number, since it uses less digits than its factorization.

23415312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43604115.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 23415312021 its reverse (12021351432), we get a palindrome (35436663453).

The spelling of 23415312021 in words is "twenty-three billion, four hundred fifteen million, three hundred twelve thousand, twenty-one".