20145431435 has 16 divisors (see below), whose sum is σ = 25474016160. Its totient is φ = 15251823360.

The previous prime is 20145431399. The next prime is 20145431459. The reversal of 20145431435 is 53413454102.

It is not a de Polignac number, because 20145431435 - 2¹⁴ = 20145415051 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23282 + ... + 202071.

It is an arithmetic number, because the mean of its divisors is an integer number (1592126010).

Almost surely, 2^20145431435 is an apocalyptic number.

20145431435 is a deficient number, since it is larger than the sum of its proper divisors (5328584725).

20145431435 is a wasteful number, since it uses less digits than its factorization.

20145431435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 226318.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 20145431435 its reverse (53413454102), we get a palindrome (73558885537).

The spelling of 20145431435 in words is "twenty billion, one hundred forty-five million, four hundred thirty-one thousand, four hundred thirty-five".