311430131123 has 8 divisors (see below), whose sum is σ = 311662989792. Its totient is φ = 311197356736.

The previous prime is 311430131107. The next prime is 311430131227. The reversal of 311430131123 is 321131034113.

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

It is a cyclic number.

It is not a de Polignac number, because 311430131123 - 2⁴ = 311430131107 is a prime.

It is a super-2 number, since 2×311430131123² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311430131323) 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, 8657711 + ... + 8693607.

It is an arithmetic number, because the mean of its divisors is an integer number (38957873724).

Almost surely, 2^311430131123 is an apocalyptic number.

311430131123 is a deficient number, since it is larger than the sum of its proper divisors (232858669).

311430131123 is a wasteful number, since it uses less digits than its factorization.

311430131123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42141.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 311430131123 its reverse (321131034113), we get a palindrome (632561165236).

The spelling of 311430131123 in words is "three hundred eleven billion, four hundred thirty million, one hundred thirty-one thousand, one hundred twenty-three".