20413403051 has 2 divisors, whose sum is σ = 20413403052. Its totient is φ = 20413403050.

The previous prime is 20413402931. The next prime is 20413403057. The reversal of 20413403051 is 15030431402.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20413403051 is a prime.

It is a super-2 number, since 2×20413403051² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20413403057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10206701525 + 10206701526.

It is an arithmetic number, because the mean of its divisors is an integer number (10206701526).

Almost surely, 2^20413403051 is an apocalyptic number.

20413403051 is a deficient number, since it is larger than the sum of its proper divisors (1).

20413403051 is an equidigital number, since it uses as much as digits as its factorization.

20413403051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20413403051 its reverse (15030431402), we get a palindrome (35443834453).

The spelling of 20413403051 in words is "twenty billion, four hundred thirteen million, four hundred three thousand, fifty-one".