31113530124101 has 4 divisors (see below), whose sum is σ = 31293377119212. Its totient is φ = 30933683128992.

The previous prime is 31113530124091. The next prime is 31113530124109. The reversal of 31113530124101 is 10142103531113.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28395150264100 + 2718379860001 = 5328710^2 + 1648751^2 .

It is a cyclic number.

It is not a de Polignac number, because 31113530124101 - 2¹⁰ = 31113530123077 is a prime.

It is a super-2 number, since 2×31113530124101² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113530124109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89923497296 + ... + 89923497641.

It is an arithmetic number, because the mean of its divisors is an integer number (7823344279803).

Almost surely, 2^{31113530124101} is an apocalyptic number.

It is an amenable number.

31113530124101 is a deficient number, since it is larger than the sum of its proper divisors (179846995111).

31113530124101 is a wasteful number, since it uses less digits than its factorization.

31113530124101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179846995110.

The product of its (nonzero) digits is 1080, while the sum is 26.

Adding to 31113530124101 its reverse (10142103531113), we get a palindrome (41255633655214).

The spelling of 31113530124101 in words is "thirty-one trillion, one hundred thirteen billion, five hundred thirty million, one hundred twenty-four thousand, one hundred one".