213332400423121 has 32 divisors (see below), whose sum is σ = 255747884544000. Its totient is φ = 173985881065920.

The previous prime is 213332400423089. The next prime is 213332400423137. The reversal of 213332400423121 is 121324004233312.

It is not a de Polignac number, because 213332400423121 - 2⁵ = 213332400423089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213332400423221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 134705686 + ... + 136280176.

It is an arithmetic number, because the mean of its divisors is an integer number (7992121392000).

Almost surely, 2^{213332400423121} is an apocalyptic number.

It is an amenable number.

213332400423121 is a deficient number, since it is larger than the sum of its proper divisors (42415484120879).

213332400423121 is a wasteful number, since it uses less digits than its factorization.

213332400423121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578949.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 213332400423121 its reverse (121324004233312), we get a palindrome (334656404656433).

The spelling of 213332400423121 in words is "two hundred thirteen trillion, three hundred thirty-two billion, four hundred million, four hundred twenty-three thousand, one hundred twenty-one".