213233115131 has 16 divisors (see below), whose sum is σ = 221309625600. Its totient is φ = 205205433888.

The previous prime is 213233115101. The next prime is 213233115143. The reversal of 213233115131 is 131511332312.

It is a cyclic number.

It is not a de Polignac number, because 213233115131 - 2¹⁴ = 213233098747 is a prime.

It is a super-2 number, since 2×213233115131² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 213233115131.

It is not an unprimeable number, because it can be changed into a prime (213233115101) 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, 29178380 + ... + 29185686.

It is an arithmetic number, because the mean of its divisors is an integer number (13831851600).

Almost surely, 2^213233115131 is an apocalyptic number.

213233115131 is a deficient number, since it is larger than the sum of its proper divisors (8076510469).

213233115131 is a wasteful number, since it uses less digits than its factorization.

213233115131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10498.

The product of its digits is 1620, while the sum is 26.

Adding to 213233115131 its reverse (131511332312), we get a palindrome (344744447443).

The spelling of 213233115131 in words is "two hundred thirteen billion, two hundred thirty-three million, one hundred fifteen thousand, one hundred thirty-one".