101132431221 has 32 divisors (see below), whose sum is σ = 145398988800. Its totient is φ = 62408646960.

The previous prime is 101132431219. The next prime is 101132431237. The reversal of 101132431221 is 122134231101.

It is not a de Polignac number, because 101132431221 - 2¹ = 101132431219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101132431271) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2030980 + ... + 2080178.

It is an arithmetic number, because the mean of its divisors is an integer number (4543718400).

Almost surely, 2^101132431221 is an apocalyptic number.

It is an amenable number.

101132431221 is a deficient number, since it is larger than the sum of its proper divisors (44266557579).

101132431221 is an frugal number, since it uses more digits than its factorization.

101132431221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49318 (or 49256 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 101132431221 its reverse (122134231101), we get a palindrome (223266662322).

The spelling of 101132431221 in words is "one hundred one billion, one hundred thirty-two million, four hundred thirty-one thousand, two hundred twenty-one".