311100061431 has 8 divisors (see below), whose sum is σ = 414812291184. Its totient is φ = 207393936320.

The previous prime is 311100061429. The next prime is 311100061507. The reversal of 311100061431 is 134160001113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 311100061431 - 2¹ = 311100061429 is a prime.

It is a super-2 number, since 2×311100061431² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311100061398 and 311100061407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311100061411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1405896 + ... + 1612061.

It is an arithmetic number, because the mean of its divisors is an integer number (51851536398).

Almost surely, 2^311100061431 is an apocalyptic number.

311100061431 is a deficient number, since it is larger than the sum of its proper divisors (103712229753).

311100061431 is a wasteful number, since it uses less digits than its factorization.

311100061431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3052321.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 311100061431 its reverse (134160001113), we get a palindrome (445260062544).

The spelling of 311100061431 in words is "three hundred eleven billion, one hundred million, sixty-one thousand, four hundred thirty-one".