311042400233421 has 16 divisors (see below), whose sum is σ = 433844494718400. Its totient is φ = 197961636098688.

The previous prime is 311042400233381. The next prime is 311042400233437. The reversal of 311042400233421 is 124332004240113.

It is not a de Polignac number, because 311042400233421 - 2¹⁰ = 311042400232397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311042400233821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20085385531 + ... + 20085401016.

It is an arithmetic number, because the mean of its divisors is an integer number (27115280919900).

Almost surely, 2^{311042400233421} is an apocalyptic number.

It is an amenable number.

311042400233421 is a deficient number, since it is larger than the sum of its proper divisors (122802094484979).

311042400233421 is a wasteful number, since it uses less digits than its factorization.

311042400233421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40170786668.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 311042400233421 its reverse (124332004240113), we get a palindrome (435374404473534).

The spelling of 311042400233421 in words is "three hundred eleven trillion, forty-two billion, four hundred million, two hundred thirty-three thousand, four hundred twenty-one".