311023133000023 has 4 divisors (see below), whose sum is σ = 311023192133808. Its totient is φ = 311023073866240.

The previous prime is 311023132999991. The next prime is 311023133000029. The reversal of 311023133000023 is 320000331320113.

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

It is a cyclic number.

It is not a de Polignac number, because 311023133000023 - 2⁵ = 311023132999991 is a prime.

It is a super-2 number, since 2×311023133000023² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 311023132999958 and 311023133000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311023133000029) 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, 20813611 + ... + 32484652.

It is an arithmetic number, because the mean of its divisors is an integer number (77755798033452).

Almost surely, 2^{311023133000023} is an apocalyptic number.

311023133000023 is a deficient number, since it is larger than the sum of its proper divisors (59133785).

311023133000023 is an equidigital number, since it uses as much as digits as its factorization.

311023133000023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59133784.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 311023133000023 its reverse (320000331320113), we get a palindrome (631023464320136).

The spelling of 311023133000023 in words is "three hundred eleven trillion, twenty-three billion, one hundred thirty-three million, twenty-three", and thus it is an aban number.