21130103401 has 4 divisors (see below), whose sum is σ = 23051021904. Its totient is φ = 19209184900.

The previous prime is 21130103399. The next prime is 21130103411. The reversal of 21130103401 is 10430103112.

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 21130103401 - 2¹ = 21130103399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21130103411) 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, 960459235 + ... + 960459256.

It is an arithmetic number, because the mean of its divisors is an integer number (5762755476).

Almost surely, 2^21130103401 is an apocalyptic number.

It is an amenable number.

21130103401 is a deficient number, since it is larger than the sum of its proper divisors (1920918503).

21130103401 is a wasteful number, since it uses less digits than its factorization.

21130103401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1920918502.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21130103401 its reverse (10430103112), we get a palindrome (31560206513).

The spelling of 21130103401 in words is "twenty-one billion, one hundred thirty million, one hundred three thousand, four hundred one".