311540004213 has 8 divisors (see below), whose sum is σ = 437249128800. Its totient is φ = 196762107888.

The previous prime is 311540004157. The next prime is 311540004239. The reversal of 311540004213 is 312400045113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311540004213 - 2¹² = 311540000117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311540004253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2732806998 + ... + 2732807111.

It is an arithmetic number, because the mean of its divisors is an integer number (54656141100).

Almost surely, 2^311540004213 is an apocalyptic number.

It is an amenable number.

311540004213 is a deficient number, since it is larger than the sum of its proper divisors (125709124587).

311540004213 is a wasteful number, since it uses less digits than its factorization.

311540004213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465614131.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 311540004213 its reverse (312400045113), we get a palindrome (623940049326).

The spelling of 311540004213 in words is "three hundred eleven billion, five hundred forty million, four thousand, two hundred thirteen".