331000131121 has 32 divisors (see below), whose sum is σ = 369758825856. Its totient is φ = 293783040000.

The previous prime is 331000131101. The next prime is 331000131149. The reversal of 331000131121 is 121131000133.

It is a cyclic number.

It is not a de Polignac number, because 331000131121 - 2¹¹ = 331000129073 is a prime.

It is a super-2 number, since 2×331000131121² (a number of 24 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 = 331000131095 and 331000131104.

It is not an unprimeable number, because it can be changed into a prime (331000131101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53203791 + ... + 53210011.

It is an arithmetic number, because the mean of its divisors is an integer number (11554963308).

Almost surely, 2^331000131121 is an apocalyptic number.

It is an amenable number.

331000131121 is a deficient number, since it is larger than the sum of its proper divisors (38758694735).

331000131121 is a wasteful number, since it uses less digits than its factorization.

331000131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6993.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 331000131121 its reverse (121131000133), we get a palindrome (452131131254).

The spelling of 331000131121 in words is "three hundred thirty-one billion, one hundred thirty-one thousand, one hundred twenty-one".