20102432401 has 2 divisors, whose sum is σ = 20102432402. Its totient is φ = 20102432400.

The previous prime is 20102432353. The next prime is 20102432407. The reversal of 20102432401 is 10423420102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16781907025 + 3320525376 = 129545^2 + 57624^2 .

It is a cyclic number.

It is not a de Polignac number, because 20102432401 - 2²³ = 20094043793 is a prime.

It is not a weakly prime, because it can be changed into another prime (20102432407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10051216200 + 10051216201.

It is an arithmetic number, because the mean of its divisors is an integer number (10051216201).

Almost surely, 2^20102432401 is an apocalyptic number.

It is an amenable number.

20102432401 is a deficient number, since it is larger than the sum of its proper divisors (1).

20102432401 is an equidigital number, since it uses as much as digits as its factorization.

20102432401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 20102432401 its reverse (10423420102), we get a palindrome (30525852503).

The spelling of 20102432401 in words is "twenty billion, one hundred two million, four hundred thirty-two thousand, four hundred one".