31133143133 has 16 divisors (see below), whose sum is σ = 31991500800. Its totient is φ = 30290050560.

The previous prime is 31133143123. The next prime is 31133143141. The reversal of 31133143133 is 33134133113.

It is a cyclic number.

It is not a de Polignac number, because 31133143133 - 2¹⁰ = 31133142109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31133143123) 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, 1386788 + ... + 1409058.

It is an arithmetic number, because the mean of its divisors is an integer number (1999468800).

Almost surely, 2^31133143133 is an apocalyptic number.

It is an amenable number.

31133143133 is a deficient number, since it is larger than the sum of its proper divisors (858357667).

31133143133 is a wasteful number, since it uses less digits than its factorization.

31133143133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22612.

The product of its digits is 2916, while the sum is 26.

Adding to 31133143133 its reverse (33134133113), we get a palindrome (64267276246).

The spelling of 31133143133 in words is "thirty-one billion, one hundred thirty-three million, one hundred forty-three thousand, one hundred thirty-three".