2145312445311 has 72 divisors (see below), whose sum is σ = 3742742923920. Its totient is φ = 1224408431232.

The previous prime is 2145312445303. The next prime is 2145312445319. The reversal of 2145312445311 is 1135442135412.

2145312445311 is a `hidden beast` number, since 2 + 145 + 31 + 24 + 453 + 11 = 666.

It is an interprime number because it is at equal distance from previous prime (2145312445303) and next prime (2145312445319).

It is not a de Polignac number, because 2145312445311 - 2³ = 2145312445303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2145312445319) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 9762235 + ... + 9979571.

It is an arithmetic number, because the mean of its divisors is an integer number (51982540610).

Almost surely, 2^{2145312445311} is an apocalyptic number.

2145312445311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2145312445311 is a deficient number, since it is larger than the sum of its proper divisors (1597430478609).

2145312445311 is an equidigital number, since it uses as much as digits as its factorization.

2145312445311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218195 (or 218176 counting only the distinct ones).

The product of its digits is 57600, while the sum is 36.

The spelling of 2145312445311 in words is "two trillion, one hundred forty-five billion, three hundred twelve million, four hundred forty-five thousand, three hundred eleven".