311432113034240 has 88 divisors (see below), whose sum is σ = 814987758447072. Its totient is φ = 113248041082880.

The previous prime is 311432113034221. The next prime is 311432113034293. The reversal of 311432113034240 is 42430311234113.

It is a tau number, because it is divible by the number of its divisors (88).

It is a super-2 number, since 2×311432113034240² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 311432113034197 and 311432113034206.

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, 2764788434 + ... + 2764901073.

Almost surely, 2^{311432113034240} is an apocalyptic number.

It is an amenable number.

311432113034240 is an abundant number, since it is smaller than the sum of its proper divisors (503555645412832).

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

311432113034240 is a wasteful number, since it uses less digits than its factorization.

311432113034240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5529689543 (or 5529689525 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 311432113034240 its reverse (42430311234113), we get a palindrome (353862424268353).

The spelling of 311432113034240 in words is "three hundred eleven trillion, four hundred thirty-two billion, one hundred thirteen million, thirty-four thousand, two hundred forty".