213131132001121 has 16 divisors (see below), whose sum is σ = 232085464200000. Its totient is φ = 194950535040576.

The previous prime is 213131132001113. The next prime is 213131132001169. The reversal of 213131132001121 is 121100231131312.

It is a cyclic number.

It is not a de Polignac number, because 213131132001121 - 2³ = 213131132001113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213131132001092 and 213131132001101.

It is not an unprimeable number, because it can be changed into a prime (213131132002121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 328567335 + ... + 329215363.

It is an arithmetic number, because the mean of its divisors is an integer number (14505341512500).

Almost surely, 2^{213131132001121} is an apocalyptic number.

It is an amenable number.

213131132001121 is a deficient number, since it is larger than the sum of its proper divisors (18954332198879).

213131132001121 is a wasteful number, since it uses less digits than its factorization.

213131132001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244976.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 213131132001121 its reverse (121100231131312), we get a palindrome (334231363132433).

The spelling of 213131132001121 in words is "two hundred thirteen trillion, one hundred thirty-one billion, one hundred thirty-two million, one thousand, one hundred twenty-one".