3121442011031 has 4 divisors (see below), whose sum is σ = 3305056246992. Its totient is φ = 2937827775072.

The previous prime is 3121442010983. The next prime is 3121442011091. The reversal of 3121442011031 is 1301102441213.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3121442011031 - 2²² = 3121437816727 is a prime.

It is a super-2 number, since 2×3121442011031² (a number of 26 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 = 3121442010988 and 3121442011006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121442011091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91807117955 + ... + 91807117988.

It is an arithmetic number, because the mean of its divisors is an integer number (826264061748).

Almost surely, 2^{3121442011031} is an apocalyptic number.

3121442011031 is a deficient number, since it is larger than the sum of its proper divisors (183614235961).

3121442011031 is a wasteful number, since it uses less digits than its factorization.

3121442011031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183614235960.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 3121442011031 its reverse (1301102441213), we get a palindrome (4422544452244).

The spelling of 3121442011031 in words is "three trillion, one hundred twenty-one billion, four hundred forty-two million, eleven thousand, thirty-one".