101003321421 has 48 divisors (see below), whose sum is σ = 149039654400. Its totient is φ = 65901924000.

The previous prime is 101003321387. The next prime is 101003321443. The reversal of 101003321421 is 124123300101.

It is not a de Polignac number, because 101003321421 - 2²³ = 100994932813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 101003321394 and 101003321403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101003321521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 37310550 + ... + 37313256.

It is an arithmetic number, because the mean of its divisors is an integer number (3104992800).

Almost surely, 2^101003321421 is an apocalyptic number.

It is an amenable number.

101003321421 is a deficient number, since it is larger than the sum of its proper divisors (48036332979).

101003321421 is a wasteful number, since it uses less digits than its factorization.

101003321421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246 (or 3243 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 101003321421 its reverse (124123300101), we get a palindrome (225126621522).

The spelling of 101003321421 in words is "one hundred one billion, three million, three hundred twenty-one thousand, four hundred twenty-one".