23211421325345 has 48 divisors (see below), whose sum is σ = 31479908878080. Its totient is φ = 16293682944000.

The previous prime is 23211421325321. The next prime is 23211421325363. The reversal of 23211421325345 is 54352312411232.

It is not a de Polignac number, because 23211421325345 - 2²² = 23211417131041 is a prime.

It is a super-3 number, since 3×23211421325345³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23211421325299 and 23211421325308.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146502920 + ... + 146661270.

It is an arithmetic number, because the mean of its divisors is an integer number (655831434960).

Almost surely, 2^{23211421325345} is an apocalyptic number.

It is an amenable number.

23211421325345 is a deficient number, since it is larger than the sum of its proper divisors (8268487552735).

23211421325345 is a wasteful number, since it uses less digits than its factorization.

23211421325345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161594 (or 161565 counting only the distinct ones).

The product of its digits is 172800, while the sum is 38.

Adding to 23211421325345 its reverse (54352312411232), we get a palindrome (77563733736577).

The spelling of 23211421325345 in words is "twenty-three trillion, two hundred eleven billion, four hundred twenty-one million, three hundred twenty-five thousand, three hundred forty-five".