18112303023131 has 4 divisors (see below), whose sum is σ = 18112349110032. Its totient is φ = 18112256936232.

The previous prime is 18112303023121. The next prime is 18112303023161. The reversal of 18112303023131 is 13132030321181.

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 18112303023131 - 2¹⁸ = 18112302760987 is a prime.

It is a super-2 number, since 2×18112303023131² (a number of 27 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 = 18112303023094 and 18112303023103.

It is not an unprimeable number, because it can be changed into a prime (18112303023121) 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 3 ways as a sum of consecutive naturals, for example, 22448831 + ... + 23241656.

It is an arithmetic number, because the mean of its divisors is an integer number (4528087277508).

Almost surely, 2^{18112303023131} is an apocalyptic number.

18112303023131 is a deficient number, since it is larger than the sum of its proper divisors (46086901).

18112303023131 is an equidigital number, since it uses as much as digits as its factorization.

18112303023131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46086900.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 18112303023131 in words is "eighteen trillion, one hundred twelve billion, three hundred three million, twenty-three thousand, one hundred thirty-one".