31144203030 has 16 divisors (see below), whose sum is σ = 74746087344. Its totient is φ = 8305120800.

The previous prime is 31144203023. The next prime is 31144203089. The reversal of 31144203030 is 3030244113.

It is a super-2 number, since 2×31144203030² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31144202988 and 31144203006.

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, 519070021 + ... + 519070080.

It is an arithmetic number, because the mean of its divisors is an integer number (4671630459).

Almost surely, 2^31144203030 is an apocalyptic number.

31144203030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31144203030 is an abundant number, since it is smaller than the sum of its proper divisors (43601884314).

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

31144203030 is a wasteful number, since it uses less digits than its factorization.

31144203030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1038140111.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31144203030 its reverse (3030244113), we get a palindrome (34174447143).

The spelling of 31144203030 in words is "thirty-one billion, one hundred forty-four million, two hundred three thousand, thirty".