31200011013013 has 2 divisors, whose sum is σ = 31200011013014. Its totient is φ = 31200011013012.

The previous prime is 31200011012987. The next prime is 31200011013043. The reversal of 31200011013013 is 31031011000213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27481677836209 + 3718333176804 = 5242297^2 + 1928298^2 .

It is a cyclic number.

It is not a de Polignac number, because 31200011013013 - 2⁵ = 31200011012981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31200011013043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15600005506506 + 15600005506507.

It is an arithmetic number, because the mean of its divisors is an integer number (15600005506507).

Almost surely, 2^{31200011013013} is an apocalyptic number.

It is an amenable number.

31200011013013 is a deficient number, since it is larger than the sum of its proper divisors (1).

31200011013013 is an equidigital number, since it uses as much as digits as its factorization.

31200011013013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31200011013013 its reverse (31031011000213), we get a palindrome (62231022013226).

The spelling of 31200011013013 in words is "thirty-one trillion, two hundred billion, eleven million, thirteen thousand, thirteen".