101046421 has 4 divisors (see below), whose sum is σ = 115481632. Its totient is φ = 86611212.

The previous prime is 101046403. The next prime is 101046437. The reversal of 101046421 is 124640101.

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: 124640101 = 43 ⋅2898607.

It is a cyclic number.

It is not a de Polignac number, because 101046421 - 2¹⁹ = 100522133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101046221) 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, 7217595 + ... + 7217608.

It is an arithmetic number, because the mean of its divisors is an integer number (28870408).

Almost surely, 2^101046421 is an apocalyptic number.

It is an amenable number.

101046421 is a deficient number, since it is larger than the sum of its proper divisors (14435211).

101046421 is an equidigital number, since it uses as much as digits as its factorization.

101046421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14435210.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 101046421 is about 10052.1848868791. The cubic root of 101046421 is about 465.7722873898.

Adding to 101046421 its reverse (124640101), we get a palindrome (225686522).

The spelling of 101046421 in words is "one hundred one million, forty-six thousand, four hundred twenty-one".