31112001221330 has 16 divisors (see below), whose sum is σ = 56710483240320. Its totient is φ = 12287271368112.

The previous prime is 31112001221297. The next prime is 31112001221363. The reversal of 31112001221330 is 3312210021113.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31112001221297) and next prime (31112001221363).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19691139224 + ... + 19691140803.

It is an arithmetic number, because the mean of its divisors is an integer number (3544405202520).

Almost surely, 2^{31112001221330} is an apocalyptic number.

31112001221330 is a deficient number, since it is larger than the sum of its proper divisors (25598482018990).

31112001221330 is a wasteful number, since it uses less digits than its factorization.

31112001221330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39382280113.

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

Adding to 31112001221330 its reverse (3312210021113), we get a palindrome (34424211242443).

The spelling of 31112001221330 in words is "thirty-one trillion, one hundred twelve billion, one million, two hundred twenty-one thousand, three hundred thirty".