20465110531 has 2 divisors, whose sum is σ = 20465110532. Its totient is φ = 20465110530.

The previous prime is 20465110481. The next prime is 20465110541. The reversal of 20465110531 is 13501156402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20465110531 - 2⁹ = 20465110019 is a prime.

It is a super-2 number, since 2×20465110531² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20465110531.

It is not a weakly prime, because it can be changed into another prime (20465110541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10232555265 + 10232555266.

It is an arithmetic number, because the mean of its divisors is an integer number (10232555266).

Almost surely, 2^20465110531 is an apocalyptic number.

20465110531 is a deficient number, since it is larger than the sum of its proper divisors (1).

20465110531 is an equidigital number, since it uses as much as digits as its factorization.

20465110531 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 20465110531 its reverse (13501156402), we get a palindrome (33966266933).

The spelling of 20465110531 in words is "twenty billion, four hundred sixty-five million, one hundred ten thousand, five hundred thirty-one".