20534003141531 has 16 divisors (see below), whose sum is σ = 23597566742400. Its totient is φ = 17671399732800.

The previous prime is 20534003141507. The next prime is 20534003141537. The reversal of 20534003141531 is 13514130043502.

It is not a de Polignac number, because 20534003141531 - 2¹⁴ = 20534003125147 is a prime.

It is a super-2 number, since 2×20534003141531² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20534003141537) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36911201 + ... + 37463378.

It is an arithmetic number, because the mean of its divisors is an integer number (1474847921400).

Almost surely, 2^{20534003141531} is an apocalyptic number.

20534003141531 is a deficient number, since it is larger than the sum of its proper divisors (3063563600869).

20534003141531 is a wasteful number, since it uses less digits than its factorization.

20534003141531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74375930.

The product of its (nonzero) digits is 21600, while the sum is 32.

The spelling of 20534003141531 in words is "twenty trillion, five hundred thirty-four billion, three million, one hundred forty-one thousand, five hundred thirty-one".