101421432403 has 4 divisors (see below), whose sum is σ = 102406106608. Its totient is φ = 100436758200.

The previous prime is 101421432397. The next prime is 101421432407. The reversal of 101421432403 is 304234124101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101421432403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101421432407) 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, 492336948 + ... + 492337153.

It is an arithmetic number, because the mean of its divisors is an integer number (25601526652).

Almost surely, 2^101421432403 is an apocalyptic number.

101421432403 is a deficient number, since it is larger than the sum of its proper divisors (984674205).

101421432403 is an equidigital number, since it uses as much as digits as its factorization.

101421432403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984674204.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 101421432403 its reverse (304234124101), we get a palindrome (405655556504).

The spelling of 101421432403 in words is "one hundred one billion, four hundred twenty-one million, four hundred thirty-two thousand, four hundred three".