230311021311 has 12 divisors (see below), whose sum is σ = 380195971792. Its totient is φ = 131606297856.

The previous prime is 230311021279. The next prime is 230311021321. The reversal of 230311021311 is 113120113032.

230311021311 is a `hidden beast` number, since 23 + 0 + 311 + 0 + 21 + 311 = 666.

It is not a de Polignac number, because 230311021311 - 2⁵ = 230311021279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230311021321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1827865186 + ... + 1827865311.

Almost surely, 2^230311021311 is an apocalyptic number.

230311021311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

230311021311 is a deficient number, since it is larger than the sum of its proper divisors (149884950481).

230311021311 is a wasteful number, since it uses less digits than its factorization.

230311021311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3655730510 (or 3655730507 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 230311021311 its reverse (113120113032), we get a palindrome (343431134343).

The spelling of 230311021311 in words is "two hundred thirty billion, three hundred eleven million, twenty-one thousand, three hundred eleven".