31301211200213 has 16 divisors (see below), whose sum is σ = 32354113499136. Its totient is φ = 30263337221040.

The previous prime is 31301211200201. The next prime is 31301211200239. The reversal of 31301211200213 is 31200211210313.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 31301211200213 - 2³⁰ = 31300137458389 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 (31301211800213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8706356 + ... + 11764482.

It is an arithmetic number, because the mean of its divisors is an integer number (2022132093696).

Almost surely, 2^{31301211200213} is an apocalyptic number.

It is an amenable number.

31301211200213 is a deficient number, since it is larger than the sum of its proper divisors (1052902298923).

31301211200213 is a wasteful number, since it uses less digits than its factorization.

31301211200213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3060584.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31301211200213 its reverse (31200211210313), we get a palindrome (62501422410526).

It can be divided in two parts, 3130121 and 1200213, that added together give a palindrome (4330334).

The spelling of 31301211200213 in words is "thirty-one trillion, three hundred one billion, two hundred eleven million, two hundred thousand, two hundred thirteen".