31100220230 has 16 divisors (see below), whose sum is σ = 55982470464. Its totient is φ = 12439627200.

The previous prime is 31100220227. The next prime is 31100220287. The reversal of 31100220230 is 3202200113.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395474 + ... + 467546.

It is an arithmetic number, because the mean of its divisors is an integer number (3498904404).

Almost surely, 2^31100220230 is an apocalyptic number.

31100220230 is a deficient number, since it is larger than the sum of its proper divisors (24882250234).

31100220230 is a wasteful number, since it uses less digits than its factorization.

31100220230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115231.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 31100220230 its reverse (3202200113), we get a palindrome (34302420343).

The spelling of 31100220230 in words is "thirty-one billion, one hundred million, two hundred twenty thousand, two hundred thirty".