33013112131 has 4 divisors (see below), whose sum is σ = 34078051264. Its totient is φ = 31948173000.

The previous prime is 33013112089. The next prime is 33013112183. The reversal of 33013112131 is 13121131033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13121131033 = 73 ⋅179741521.

It is a cyclic number.

It is not a de Polignac number, because 33013112131 - 2²³ = 33004723523 is a prime.

It is a super-2 number, since 2×33013112131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 33013112099 and 33013112108.

It is not an unprimeable number, because it can be changed into a prime (33013115131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 532469520 + ... + 532469581.

It is an arithmetic number, because the mean of its divisors is an integer number (8519512816).

Almost surely, 2^33013112131 is an apocalyptic number.

33013112131 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

33013112131 is a deficient number, since it is larger than the sum of its proper divisors (1064939133).

33013112131 is a wasteful number, since it uses less digits than its factorization.

33013112131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064939132.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 33013112131 its reverse (13121131033), we get a palindrome (46134243164).

The spelling of 33013112131 in words is "thirty-three billion, thirteen million, one hundred twelve thousand, one hundred thirty-one".