311546430742 has 4 divisors (see below), whose sum is σ = 467319646116. Its totient is φ = 155773215370.

The previous prime is 311546430737. The next prime is 311546430743. The reversal of 311546430742 is 247034645113.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×311546430742² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311546430695 and 311546430704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311546430743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 77886607684 + ... + 77886607687.

It is an arithmetic number, because the mean of its divisors is an integer number (116829911529).

Almost surely, 2^311546430742 is an apocalyptic number.

311546430742 is a deficient number, since it is larger than the sum of its proper divisors (155773215374).

311546430742 is a wasteful number, since it uses less digits than its factorization.

311546430742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155773215373.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 311546430742 in words is "three hundred eleven billion, five hundred forty-six million, four hundred thirty thousand, seven hundred forty-two".