23215012421345 has 8 divisors (see below), whose sum is σ = 27866278946880. Its totient is φ = 18566500576240.

The previous prime is 23215012421311. The next prime is 23215012421351. The reversal of 23215012421345 is 54312421051232.

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

It is not a de Polignac number, because 23215012421345 - 2⁶ = 23215012421281 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688651565 + ... + 688685274.

It is an arithmetic number, because the mean of its divisors is an integer number (3483284868360).

Almost surely, 2^{23215012421345} is an apocalyptic number.

It is an amenable number.

23215012421345 is a deficient number, since it is larger than the sum of its proper divisors (4651266525535).

23215012421345 is a wasteful number, since it uses less digits than its factorization.

23215012421345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1377340215.

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 23215012421345 its reverse (54312421051232), we get a palindrome (77527433472577).

The spelling of 23215012421345 in words is "twenty-three trillion, two hundred fifteen billion, twelve million, four hundred twenty-one thousand, three hundred forty-five".