311421011140 has 12 divisors (see below), whose sum is σ = 653984123436. Its totient is φ = 124568404448.

The previous prime is 311421011123. The next prime is 311421011147. The reversal of 311421011140 is 41110124113.

It can be written as a sum of positive squares in 2 ways, for example, as 39154119876 + 272266891264 = 197874^2 + 521792^2 .

It is not an unprimeable number, because it can be changed into a prime (311421011147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7785525259 + ... + 7785525298.

It is an arithmetic number, because the mean of its divisors is an integer number (54498676953).

Almost surely, 2^311421011140 is an apocalyptic number.

It is an amenable number.

311421011140 is an abundant number, since it is smaller than the sum of its proper divisors (342563112296).

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

311421011140 is a wasteful number, since it uses less digits than its factorization.

311421011140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15571050566 (or 15571050564 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 311421011140 its reverse (41110124113), we get a palindrome (352531135253).

The spelling of 311421011140 in words is "three hundred eleven billion, four hundred twenty-one million, eleven thousand, one hundred forty".