101403430021 has 4 divisors (see below), whose sum is σ = 101439000544. Its totient is φ = 101367859500.

The previous prime is 101403430013. The next prime is 101403430097. The reversal of 101403430021 is 120034304101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120034304101 = 23 ⋅5218882787.

It is a cyclic number.

It is not a de Polignac number, because 101403430021 - 2³ = 101403430013 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 (101403430421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17780985 + ... + 17786686.

It is an arithmetic number, because the mean of its divisors is an integer number (25359750136).

Almost surely, 2^101403430021 is an apocalyptic number.

It is an amenable number.

101403430021 is a deficient number, since it is larger than the sum of its proper divisors (35570523).

101403430021 is an equidigital number, since it uses as much as digits as its factorization.

101403430021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35570522.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 101403430021 its reverse (120034304101), we get a palindrome (221437734122).

The spelling of 101403430021 in words is "one hundred one billion, four hundred three million, four hundred thirty thousand, twenty-one".