10020400001 has 4 divisors (see below), whose sum is σ = 10023812400. Its totient is φ = 10016987604.

The previous prime is 10020399973. The next prime is 10020400007. The reversal of 10020400001 is 10000402001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10020400001 - 2²² = 10016205697 is a prime.

It is a super-4 number, since 4×10020400001⁴ (a number of 41 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020400007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1701791 + ... + 1707668.

It is an arithmetic number, because the mean of its divisors is an integer number (2505953100).

Almost surely, 2^10020400001 is an apocalyptic number.

It is an amenable number.

10020400001 is a deficient number, since it is larger than the sum of its proper divisors (3412399).

10020400001 is an equidigital number, since it uses as much as digits as its factorization.

10020400001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3412398.

The product of its (nonzero) digits is 8, while the sum is 8.

Adding to 10020400001 its reverse (10000402001), we get a palindrome (20020802002).

The spelling of 10020400001 in words is "ten billion, twenty million, four hundred thousand, one".