31201201230013 has 4 divisors (see below), whose sum is σ = 31203548786848. Its totient is φ = 31198853673180.

The previous prime is 31201201230011. The next prime is 31201201230019. The reversal of 31201201230013 is 31003210210213.

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 31201201230013 - 2¹ = 31201201230011 is a prime.

It is a super-3 number, since 3×31201201230013³ (a number of 41 digits) contains 333 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 (31201201230011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173758481 + ... + 1173785062.

It is an arithmetic number, because the mean of its divisors is an integer number (7800887196712).

Almost surely, 2^{31201201230013} is an apocalyptic number.

It is an amenable number.

31201201230013 is a deficient number, since it is larger than the sum of its proper divisors (2347556835).

31201201230013 is a wasteful number, since it uses less digits than its factorization.

31201201230013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347556834.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31201201230013 its reverse (31003210210213), we get a palindrome (62204411440226).

The spelling of 31201201230013 in words is "thirty-one trillion, two hundred one billion, two hundred one million, two hundred thirty thousand, thirteen".