31103311120230 has 32 divisors (see below), whose sum is σ = 74702315284704. Its totient is φ = 8288175343616.

The previous prime is 31103311120229. The next prime is 31103311120303. The reversal of 31103311120230 is 3202111330113.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 31103311120197 and 31103311120206.

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, 377517819 + ... + 377600198.

It is an arithmetic number, because the mean of its divisors is an integer number (2334447352647).

Almost surely, 2^{31103311120230} is an apocalyptic number.

31103311120230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31103311120230 is an abundant number, since it is smaller than the sum of its proper divisors (43599004164474).

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

31103311120230 is a wasteful number, since it uses less digits than its factorization.

31103311120230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755119400.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31103311120230 its reverse (3202111330113), we get a palindrome (34305422450343).

The spelling of 31103311120230 in words is "thirty-one trillion, one hundred three billion, three hundred eleven million, one hundred twenty thousand, two hundred thirty".