31043055340 has 48 divisors (see below), whose sum is σ = 71146978560. Its totient is φ = 11283596480.

The previous prime is 31043055271. The next prime is 31043055341. The reversal of 31043055340 is 4355034013.

It is a junction number, because it is equal to n+sod(n) for n = 31043055299 and 31043055308.

It is not an unprimeable number, because it can be changed into a prime (31043055341) 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, 512289 + ... + 569671.

It is an arithmetic number, because the mean of its divisors is an integer number (1482228720).

Almost surely, 2^31043055340 is an apocalyptic number.

It is an amenable number.

31043055340 is an abundant number, since it is smaller than the sum of its proper divisors (40103923220).

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

31043055340 is a wasteful number, since it uses less digits than its factorization.

31043055340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59862 (or 59860 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

Adding to 31043055340 its reverse (4355034013), we get a palindrome (35398089353).

The spelling of 31043055340 in words is "thirty-one billion, forty-three million, fifty-five thousand, three hundred forty".