2045213244531 has 24 divisors (see below), whose sum is σ = 3235834349280. Its totient is φ = 1239020326656.

The previous prime is 2045213244499. The next prime is 2045213244541. The reversal of 2045213244531 is 1354423125402.

It is a happy number.

2045213244531 is a `hidden beast` number, since 2 + 0 + 4 + 52 + 1 + 32 + 44 + 531 = 666.

It is not a de Polignac number, because 2045213244531 - 2⁵ = 2045213244499 is a prime.

It is a super-2 number, since 2×2045213244531² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2045213244541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 230468095 + ... + 230476968.

It is an arithmetic number, because the mean of its divisors is an integer number (134826431220).

Almost surely, 2^{2045213244531} is an apocalyptic number.

2045213244531 is a deficient number, since it is larger than the sum of its proper divisors (1190621104749).

2045213244531 is a wasteful number, since it uses less digits than its factorization.

2045213244531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460945115 (or 460945112 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 2045213244531 its reverse (1354423125402), we get a palindrome (3399636369933).

The spelling of 2045213244531 in words is "two trillion, forty-five billion, two hundred thirteen million, two hundred forty-four thousand, five hundred thirty-one".