31314042430140 has 24 divisors (see below), whose sum is σ = 87679318804560. Its totient is φ = 8350411314688.

The previous prime is 31314042430103. The next prime is 31314042430189. The reversal of 31314042430140 is 4103424041313.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 31314042430098 and 31314042430107.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 260950353525 + ... + 260950353644.

It is an arithmetic number, because the mean of its divisors is an integer number (3653304950190).

Almost surely, 2^{31314042430140} is an apocalyptic number.

31314042430140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31314042430140 is an abundant number, since it is smaller than the sum of its proper divisors (56365276374420).

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

31314042430140 is a wasteful number, since it uses less digits than its factorization.

31314042430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521900707181 (or 521900707179 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 31314042430140 its reverse (4103424041313), we get a palindrome (35417466471453).

The spelling of 31314042430140 in words is "thirty-one trillion, three hundred fourteen billion, forty-two million, four hundred thirty thousand, one hundred forty".