31513112244123 has 8 divisors (see below), whose sum is σ = 42028637104128. Its totient is φ = 21003164440104.

The previous prime is 31513112244091. The next prime is 31513112244143. The reversal of 31513112244123 is 32144221131513.

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

It is not a de Polignac number, because 31513112244123 - 2⁵ = 31513112244091 is a prime.

It is a super-2 number, since 2×31513112244123² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31513112244143) 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, 1394250811 + ... + 1394273412.

It is an arithmetic number, because the mean of its divisors is an integer number (5253579638016).

Almost surely, 2^{31513112244123} is an apocalyptic number.

31513112244123 is a deficient number, since it is larger than the sum of its proper divisors (10515524860005).

31513112244123 is a wasteful number, since it uses less digits than its factorization.

31513112244123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2788527993.

The product of its digits is 17280, while the sum is 33.

Adding to 31513112244123 its reverse (32144221131513), we get a palindrome (63657333375636).

The spelling of 31513112244123 in words is "thirty-one trillion, five hundred thirteen billion, one hundred twelve million, two hundred forty-four thousand, one hundred twenty-three".