31303211022131 has 8 divisors (see below), whose sum is σ = 33293206767744. Its totient is φ = 29329729764480.

The previous prime is 31303211022077. The next prime is 31303211022133. The reversal of 31303211022131 is 13122011230313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 31303211022131 - 2⁶ = 31303211022067 is a prime.

It is a super-2 number, since 2×31303211022131² (a number of 28 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 = 31303211022097 and 31303211022106.

It is not an unprimeable number, because it can be changed into a prime (31303211022133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4128618080 + ... + 4128625661.

It is an arithmetic number, because the mean of its divisors is an integer number (4161650845968).

Almost surely, 2^{31303211022131} is an apocalyptic number.

31303211022131 is a deficient number, since it is larger than the sum of its proper divisors (1989995745613).

31303211022131 is a wasteful number, since it uses less digits than its factorization.

31303211022131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8257243981.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31303211022131 its reverse (13122011230313), we get a palindrome (44425222252444).

The spelling of 31303211022131 in words is "thirty-one trillion, three hundred three billion, two hundred eleven million, twenty-two thousand, one hundred thirty-one".