101532006421 has 2 divisors, whose sum is σ = 101532006422. Its totient is φ = 101532006420.

The previous prime is 101532006413. The next prime is 101532006437. The reversal of 101532006421 is 124600235101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82512562500 + 19019443921 = 287250^2 + 137911^2 .

It is a cyclic number.

It is not a de Polignac number, because 101532006421 - 2³ = 101532006413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101532006451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50766003210 + 50766003211.

It is an arithmetic number, because the mean of its divisors is an integer number (50766003211).

Almost surely, 2^101532006421 is an apocalyptic number.

It is an amenable number.

101532006421 is a deficient number, since it is larger than the sum of its proper divisors (1).

101532006421 is an equidigital number, since it uses as much as digits as its factorization.

101532006421 is an evil number, because the sum of its binary digits is even.

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

The spelling of 101532006421 in words is "one hundred one billion, five hundred thirty-two million, six thousand, four hundred twenty-one".