101431244421 has 24 divisors (see below), whose sum is σ = 157822080416. Its totient is φ = 62403346080.

The previous prime is 101431244381. The next prime is 101431244459. The reversal of 101431244421 is 124442134101.

It is not a de Polignac number, because 101431244421 - 2²⁵ = 101397689989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101431244491) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 360066 + ... + 576636.

Almost surely, 2^101431244421 is an apocalyptic number.

It is an amenable number.

101431244421 is a deficient number, since it is larger than the sum of its proper divisors (56390835995).

101431244421 is a wasteful number, since it uses less digits than its factorization.

101431244421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220593 (or 220590 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 101431244421 its reverse (124442134101), we get a palindrome (225873378522).

The spelling of 101431244421 in words is "one hundred one billion, four hundred thirty-one million, two hundred forty-four thousand, four hundred twenty-one".