21031000130101 has 8 divisors (see below), whose sum is σ = 22649584376160. Its totient is φ = 19412532313392.

The previous prime is 21031000130099. The next prime is 21031000130113. The reversal of 21031000130101 is 10103100013012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21031000130101 - 2¹ = 21031000130099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21031000130201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28731991 + ... + 29454868.

It is an arithmetic number, because the mean of its divisors is an integer number (2831198047020).

Almost surely, 2^{21031000130101} is an apocalyptic number.

It is an amenable number.

21031000130101 is a deficient number, since it is larger than the sum of its proper divisors (1618584246059).

21031000130101 is a wasteful number, since it uses less digits than its factorization.

21031000130101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58214675.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 21031000130101 its reverse (10103100013012), we get a palindrome (31134100143113).

The spelling of 21031000130101 in words is "twenty-one trillion, thirty-one billion, one hundred thirty thousand, one hundred one".