20033473531 has 2 divisors, whose sum is σ = 20033473532. Its totient is φ = 20033473530.

The previous prime is 20033473393. The next prime is 20033473619. The reversal of 20033473531 is 13537433002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20033473531 - 2³¹ = 17885989883 is a prime.

It is a super-2 number, since 2×20033473531² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20033473493 and 20033473502.

It is not a weakly prime, because it can be changed into another prime (20033473331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016736765 + 10016736766.

It is an arithmetic number, because the mean of its divisors is an integer number (10016736766).

Almost surely, 2^20033473531 is an apocalyptic number.

20033473531 is a deficient number, since it is larger than the sum of its proper divisors (1).

20033473531 is an equidigital number, since it uses as much as digits as its factorization.

20033473531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 31.

The spelling of 20033473531 in words is "twenty billion, thirty-three million, four hundred seventy-three thousand, five hundred thirty-one".