311201043013100 has 72 divisors (see below), whose sum is σ = 688057245111600. Its totient is φ = 122130069684480.

The previous prime is 311201043013099. The next prime is 311201043013109. The reversal of 311201043013100 is 1310340102113.

It is a super-2 number, since 2×311201043013100² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (311201043013109) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 434098751 + ... + 434815049.

It is an arithmetic number, because the mean of its divisors is an integer number (9556350626550).

Almost surely, 2^{311201043013100} is an apocalyptic number.

It is an amenable number.

311201043013100 is an abundant number, since it is smaller than the sum of its proper divisors (376856202098500).

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

311201043013100 is a wasteful number, since it uses less digits than its factorization.

311201043013100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 798339 (or 798332 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 311201043013100 its reverse (1310340102113), we get a palindrome (312511383115213).

The spelling of 311201043013100 in words is "three hundred eleven trillion, two hundred one billion, forty-three million, thirteen thousand, one hundred".