20034310531 has 4 divisors (see below), whose sum is σ = 20034593712. Its totient is φ = 20034027352.

The previous prime is 20034310519. The next prime is 20034310537. The reversal of 20034310531 is 13501343002.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20034310531 - 2⁷ = 20034310403 is a prime.

It is a super-2 number, since 2×20034310531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20034310537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65301 + ... + 210553.

It is an arithmetic number, because the mean of its divisors is an integer number (5008648428).

Almost surely, 2^20034310531 is an apocalyptic number.

20034310531 is a deficient number, since it is larger than the sum of its proper divisors (283181).

20034310531 is a wasteful number, since it uses less digits than its factorization.

20034310531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283180.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 20034310531 its reverse (13501343002), we get a palindrome (33535653533).

The spelling of 20034310531 in words is "twenty billion, thirty-four million, three hundred ten thousand, five hundred thirty-one".