101406325021 has 8 divisors (see below), whose sum is σ = 101568681720. Its totient is φ = 101244100608.

The previous prime is 101406324991. The next prime is 101406325051. The reversal of 101406325021 is 120523604101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (101406324991) and next prime (101406325051).

It can be written as a sum of positive squares in 4 ways, for example, as 82578643225 + 18827681796 = 287365^2 + 137214^2 .

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 101406325021 - 2¹¹ = 101406322973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101406325051) 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, 1562205 + ... + 1625821.

It is an arithmetic number, because the mean of its divisors is an integer number (12696085215).

Almost surely, 2^101406325021 is an apocalyptic number.

It is an amenable number.

101406325021 is a deficient number, since it is larger than the sum of its proper divisors (162356699).

101406325021 is a wasteful number, since it uses less digits than its factorization.

101406325021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66143.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 101406325021 its reverse (120523604101), we get a palindrome (221929929122).

The spelling of 101406325021 in words is "one hundred one billion, four hundred six million, three hundred twenty-five thousand, twenty-one".