31102101100230 has 32 divisors (see below), whose sum is σ = 74645468923104. Its totient is φ = 8293846262016.

The previous prime is 31102101100211. The next prime is 31102101100271. The reversal of 31102101100230 is 3200110120113.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2548524 + ... + 8288496.

It is an arithmetic number, because the mean of its divisors is an integer number (2332670903847).

Almost surely, 2^{31102101100230} is an apocalyptic number.

31102101100230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31102101100230 is an abundant number, since it is smaller than the sum of its proper divisors (43543367822874).

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

31102101100230 is a wasteful number, since it uses less digits than its factorization.

31102101100230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5920600.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 31102101100230 its reverse (3200110120113), we get a palindrome (34302211220343).

The spelling of 31102101100230 in words is "thirty-one trillion, one hundred two billion, one hundred one million, one hundred thousand, two hundred thirty".