31101303321131 has 16 divisors (see below), whose sum is σ = 31566852636480. Its totient is φ = 30639697420800.

The previous prime is 31101303321107. The next prime is 31101303321157. The reversal of 31101303321131 is 13112330310113.

It is a cyclic number.

It is not a de Polignac number, because 31101303321131 - 2¹⁰ = 31101303320107 is a prime.

It is a super-2 number, since 2×31101303321131² (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 = 31101303321097 and 31101303321106.

It is not an unprimeable number, because it can be changed into a prime (31101303327131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16507106 + ... + 18294456.

It is an arithmetic number, because the mean of its divisors is an integer number (1972928289780).

Almost surely, 2^{31101303321131} is an apocalyptic number.

31101303321131 is a deficient number, since it is larger than the sum of its proper divisors (465549315349).

31101303321131 is a wasteful number, since it uses less digits than its factorization.

31101303321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1788454.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 31101303321131 its reverse (13112330310113), we get a palindrome (44213633631244).

The spelling of 31101303321131 in words is "thirty-one trillion, one hundred one billion, three hundred three million, three hundred twenty-one thousand, one hundred thirty-one".