31141421133 has 16 divisors (see below), whose sum is σ = 41930277696. Its totient is φ = 20556944640.

The previous prime is 31141421111. The next prime is 31141421149. The reversal of 31141421133 is 33112414113.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-31141421133 is a prime.

It is a super-2 number, since 2×31141421133² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31141421833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 671235 + ... + 716127.

It is an arithmetic number, because the mean of its divisors is an integer number (2620642356).

Almost surely, 2^31141421133 is an apocalyptic number.

It is an amenable number.

31141421133 is a deficient number, since it is larger than the sum of its proper divisors (10788856563).

31141421133 is a wasteful number, since it uses less digits than its factorization.

31141421133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47164.

The product of its digits is 864, while the sum is 24.

Adding to 31141421133 its reverse (33112414113), we get a palindrome (64253835246).

The spelling of 31141421133 in words is "thirty-one billion, one hundred forty-one million, four hundred twenty-one thousand, one hundred thirty-three".