311402054020 has 24 divisors (see below), whose sum is σ = 682376675904. Its totient is φ = 119145133536.

The previous prime is 311402053993. The next prime is 311402054021. The reversal of 311402054020 is 20450204113.

It is a junction number, because it is equal to n+sod(n) for n = 311402053982 and 311402054000.

It is not an unprimeable number, because it can be changed into a prime (311402054021) 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, 338480034 + ... + 338480953.

It is an arithmetic number, because the mean of its divisors is an integer number (28432361496).

Almost surely, 2^311402054020 is an apocalyptic number.

It is an amenable number.

311402054020 is an abundant number, since it is smaller than the sum of its proper divisors (370974621884).

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

311402054020 is a wasteful number, since it uses less digits than its factorization.

311402054020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 676961019 (or 676961017 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 311402054020 its reverse (20450204113), we get a palindrome (331852258133).

The spelling of 311402054020 in words is "three hundred eleven billion, four hundred two million, fifty-four thousand, twenty".