311435421100 has 18 divisors (see below), whose sum is σ = 675814864004. Its totient is φ = 124574168400.

The previous prime is 311435421029. The next prime is 311435421103. The reversal of 311435421100 is 1124534113.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (311435421103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1557177006 + ... + 1557177205.

Almost surely, 2^311435421100 is an apocalyptic number.

It is an amenable number.

311435421100 is an abundant number, since it is smaller than the sum of its proper divisors (364379442904).

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

311435421100 is a wasteful number, since it uses less digits than its factorization.

311435421100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3114354225 (or 3114354218 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 311435421100 its reverse (1124534113), we get a palindrome (312559955213).

The spelling of 311435421100 in words is "three hundred eleven billion, four hundred thirty-five million, four hundred twenty-one thousand, one hundred".