31013132103030 has 256 divisors, whose sum is σ = 93118370881536. Its totient is φ = 6422056043520.

The previous prime is 31013132103013. The next prime is 31013132103059. The reversal of 31013132103030 is 3030123131013.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 31013132102988 and 31013132103006.

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, 876976129 + ... + 877011491.

It is an arithmetic number, because the mean of its divisors is an integer number (363743636256).

Almost surely, 2^{31013132103030} is an apocalyptic number.

31013132103030 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 31013132103030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46559185440768).

31013132103030 is an abundant number, since it is smaller than the sum of its proper divisors (62105238778506).

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

31013132103030 is a wasteful number, since it uses less digits than its factorization.

31013132103030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36691.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31013132103030 its reverse (3030123131013), we get a palindrome (34043255234043).

The spelling of 31013132103030 in words is "thirty-one trillion, thirteen billion, one hundred thirty-two million, one hundred three thousand, thirty".