311012100040 has 32 divisors (see below), whose sum is σ = 702780581880. Its totient is φ = 123870909952.

The previous prime is 311012099977. The next prime is 311012100107. The reversal of 311012100040 is 40001210113.

It can be written as a sum of positive squares in 4 ways, for example, as 136186093156 + 174826006884 = 369034^2 + 418122^2 .

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, 16675879 + ... + 16694518.

Almost surely, 2^311012100040 is an apocalyptic number.

It is an amenable number.

311012100040 is an abundant number, since it is smaller than the sum of its proper divisors (391768481840).

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

311012100040 is a wasteful number, since it uses less digits than its factorization.

311012100040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33370641 (or 33370637 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 311012100040 its reverse (40001210113), we get a palindrome (351013310153).

The spelling of 311012100040 in words is "three hundred eleven billion, twelve million, one hundred thousand, forty".