31350121533013 has 8 divisors (see below), whose sum is σ = 32390642618048. Its totient is φ = 30323757197664.

The previous prime is 31350121532999. The next prime is 31350121533077. The reversal of 31350121533013 is 31033512105313.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31350121533013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31350121533113) 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, 3539182920 + ... + 3539191777.

It is an arithmetic number, because the mean of its divisors is an integer number (4048830327256).

Almost surely, 2^{31350121533013} is an apocalyptic number.

It is an amenable number.

31350121533013 is a deficient number, since it is larger than the sum of its proper divisors (1040521085035).

31350121533013 is a wasteful number, since it uses less digits than its factorization.

31350121533013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7078374843.

The product of its (nonzero) digits is 12150, while the sum is 31.

Adding to 31350121533013 its reverse (31033512105313), we get a palindrome (62383633638326).

The spelling of 31350121533013 in words is "thirty-one trillion, three hundred fifty billion, one hundred twenty-one million, five hundred thirty-three thousand, thirteen".