31225530042630 has 256 divisors, whose sum is σ = 104414846515200. Its totient is φ = 6450915755520.

The previous prime is 31225530042617. The next prime is 31225530042659. The reversal of 31225530042630 is 3624003552213.

31225530042630 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 553 + 0 + 0 + 42 + 63 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 744225 + ... + 7937564.

It is an arithmetic number, because the mean of its divisors is an integer number (407870494200).

Almost surely, 2^{31225530042630} is an apocalyptic number.

31225530042630 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31225530042630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52207423257600).

31225530042630 is an abundant number, since it is smaller than the sum of its proper divisors (73189316472570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31225530042630 is a wasteful number, since it uses less digits than its factorization.

31225530042630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8681996 (or 8681990 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 31225530042630 its reverse (3624003552213), we get a palindrome (34849533594843).

The spelling of 31225530042630 in words is "thirty-one trillion, two hundred twenty-five billion, five hundred thirty million, forty-two thousand, six hundred thirty".