31301332021130 has 16 divisors (see below), whose sum is σ = 57405461745384. Its totient is φ = 12284296340160.

The previous prime is 31301332021121. The next prime is 31301332021181. The reversal of 31301332021130 is 3112023310313.

It can be written as a sum of positive squares in 4 ways, for example, as 24979894044121 + 6321437977009 = 4997989^2 + 2514247^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31301332021096 and 31301332021105.

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, 29529557981 + ... + 29529559040.

Almost surely, 2^{31301332021130} is an apocalyptic number.

31301332021130 is a deficient number, since it is larger than the sum of its proper divisors (26104129724254).

31301332021130 is a wasteful number, since it uses less digits than its factorization.

31301332021130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59059117081.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31301332021130 its reverse (3112023310313), we get a palindrome (34413355331443).

The spelling of 31301332021130 in words is "thirty-one trillion, three hundred one billion, three hundred thirty-two million, twenty-one thousand, one hundred thirty".