31112210030 has 32 divisors (see below), whose sum is σ = 62094606048. Its totient is φ = 11128060800.

The previous prime is 31112210023. The next prime is 31112210033. The reversal of 31112210030 is 3001221113.

It is a super-2 number, since 2×31112210030² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31112209987 and 31112210014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112210033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2311637 + ... + 2325056.

It is an arithmetic number, because the mean of its divisors is an integer number (1940456439).

Almost surely, 2^31112210030 is an apocalyptic number.

31112210030 is a deficient number, since it is larger than the sum of its proper divisors (30982396018).

31112210030 is a wasteful number, since it uses less digits than its factorization.

31112210030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4636772.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31112210030 its reverse (3001221113), we get a palindrome (34113431143).

It can be divided in two parts, 31112 and 210030, that added together give a palindrome (241142).

The spelling of 31112210030 in words is "thirty-one billion, one hundred twelve million, two hundred ten thousand, thirty".