31103131131301 has 4 divisors (see below), whose sum is σ = 32455441180512. Its totient is φ = 29750821082092.

The previous prime is 31103131131299. The next prime is 31103131131313. The reversal of 31103131131301 is 10313113130113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31103131131301 - 2¹ = 31103131131299 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 (31103131131361) 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, 676155024571 + ... + 676155024616.

It is an arithmetic number, because the mean of its divisors is an integer number (8113860295128).

Almost surely, 2^{31103131131301} is an apocalyptic number.

It is an amenable number.

31103131131301 is a deficient number, since it is larger than the sum of its proper divisors (1352310049211).

31103131131301 is a wasteful number, since it uses less digits than its factorization.

31103131131301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352310049210.

The product of its (nonzero) digits is 243, while the sum is 22.

Adding to 31103131131301 its reverse (10313113130113), we get a palindrome (41416244261414).

The spelling of 31103131131301 in words is "thirty-one trillion, one hundred three billion, one hundred thirty-one million, one hundred thirty-one thousand, three hundred one".