20042411461 has 2 divisors, whose sum is σ = 20042411462. Its totient is φ = 20042411460.

The previous prime is 20042411419. The next prime is 20042411527. The reversal of 20042411461 is 16411424002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13496630625 + 6545780836 = 116175^2 + 80906^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20042411461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20042411261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10021205730 + 10021205731.

It is an arithmetic number, because the mean of its divisors is an integer number (10021205731).

Almost surely, 2^20042411461 is an apocalyptic number.

It is an amenable number.

20042411461 is a deficient number, since it is larger than the sum of its proper divisors (1).

20042411461 is an equidigital number, since it uses as much as digits as its factorization.

20042411461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 20042411461 its reverse (16411424002), we get a palindrome (36453835463).

The spelling of 20042411461 in words is "twenty billion, forty-two million, four hundred eleven thousand, four hundred sixty-one".