31231122102030 has 64 divisors (see below), whose sum is σ = 76205001139200. Its totient is φ = 8189453320320.

The previous prime is 31231122102017. The next prime is 31231122102067. The reversal of 31231122102030 is 3020122113213.

It is a junction number, because it is equal to n+sod(n) for n = 31231122101988 and 31231122102006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4065211 + ... + 8887529.

It is an arithmetic number, because the mean of its divisors is an integer number (1190703142800).

Almost surely, 2^{31231122102030} is an apocalyptic number.

31231122102030 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 31231122102030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38102500569600).

31231122102030 is an abundant number, since it is smaller than the sum of its proper divisors (44973879037170).

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

31231122102030 is a wasteful number, since it uses less digits than its factorization.

31231122102030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4825929.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31231122102030 its reverse (3020122113213), we get a palindrome (34251244215243).

The spelling of 31231122102030 in words is "thirty-one trillion, two hundred thirty-one billion, one hundred twenty-two million, one hundred two thousand, thirty".