31124143133 has 12 divisors (see below), whose sum is σ = 33390055572. Its totient is φ = 29003251200.

The previous prime is 31124143129. The next prime is 31124143147. The reversal of 31124143133 is 33134142113.

It can be written as a sum of positive squares in 6 ways, for example, as 7641032569 + 23483110564 = 87413^2 + 153242^2 .

It is not a de Polignac number, because 31124143133 - 2² = 31124143129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31124143153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 503960 + ... + 562337.

It is an arithmetic number, because the mean of its divisors is an integer number (2782504631).

Almost surely, 2^31124143133 is an apocalyptic number.

It is an amenable number.

31124143133 is a deficient number, since it is larger than the sum of its proper divisors (2265912439).

31124143133 is a wasteful number, since it uses less digits than its factorization.

31124143133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066432 (or 1066415 counting only the distinct ones).

The product of its digits is 2592, while the sum is 26.

Adding to 31124143133 its reverse (33134142113), we get a palindrome (64258285246).

The spelling of 31124143133 in words is "thirty-one billion, one hundred twenty-four million, one hundred forty-three thousand, one hundred thirty-three".