311353231103 has 4 divisors (see below), whose sum is σ = 311569600320. Its totient is φ = 311136861888.

The previous prime is 311353231073. The next prime is 311353231153. The reversal of 311353231103 is 301132353113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301132353113 = 25357 ⋅11875709.

It is a cyclic number.

It is not a de Polignac number, because 311353231103 - 2⁶ = 311353231039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311353231153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108182450 + ... + 108185327.

It is an arithmetic number, because the mean of its divisors is an integer number (77892400080).

Almost surely, 2^311353231103 is an apocalyptic number.

311353231103 is a deficient number, since it is larger than the sum of its proper divisors (216369217).

311353231103 is a wasteful number, since it uses less digits than its factorization.

311353231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216369216.

The product of its (nonzero) digits is 2430, while the sum is 26.

Adding to 311353231103 its reverse (301132353113), we get a palindrome (612485584216).

The spelling of 311353231103 in words is "three hundred eleven billion, three hundred fifty-three million, two hundred thirty-one thousand, one hundred three".