31210030230 has 64 divisors (see below), whose sum is σ = 78997904640. Its totient is φ = 7869488256.

The previous prime is 31210030219. The next prime is 31210030351. The reversal of 31210030230 is 3203001213.

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

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, 245764 + ... + 350456.

It is an arithmetic number, because the mean of its divisors is an integer number (1234342260).

Almost surely, 2^31210030230 is an apocalyptic number.

31210030230 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 31210030230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39498952320).

31210030230 is an abundant number, since it is smaller than the sum of its proper divisors (47787874410).

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

31210030230 is a wasteful number, since it uses less digits than its factorization.

31210030230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105245.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 31210030230 its reverse (3203001213), we get a palindrome (34413031443).

The spelling of 31210030230 in words is "thirty-one billion, two hundred ten million, thirty thousand, two hundred thirty".