31103001030 has 32 divisors (see below), whose sum is σ = 74668716288. Its totient is φ = 8291743200.

The previous prime is 31103001019. The next prime is 31103001047. The reversal of 31103001030 is 3010030113.

It is a junction number, because it is equal to n+sod(n) for n = 31103000997 and 31103001015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42316 + ... + 252975.

It is an arithmetic number, because the mean of its divisors is an integer number (2333397384).

Almost surely, 2^31103001030 is an apocalyptic number.

31103001030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31103001030 is an abundant number, since it is smaller than the sum of its proper divisors (43565715258).

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

31103001030 is a wasteful number, since it uses less digits than its factorization.

31103001030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298812.

The product of its (nonzero) digits is 27, while the sum is 12.

Adding to 31103001030 its reverse (3010030113), we get a palindrome (34113031143).

The spelling of 31103001030 in words is "thirty-one billion, one hundred three million, one thousand, thirty".