101043023421 has 8 divisors (see below), whose sum is σ = 134741270880. Its totient is φ = 67353395792.

The previous prime is 101043023399. The next prime is 101043023443. The reversal of 101043023421 is 124320340101.

It is an interprime number because it is at equal distance from previous prime (101043023399) and next prime (101043023443).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101043023421 - 2¹⁹ = 101042499133 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101043023021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2127555 + ... + 2174528.

It is an arithmetic number, because the mean of its divisors is an integer number (16842658860).

Almost surely, 2^101043023421 is an apocalyptic number.

It is an amenable number.

101043023421 is a deficient number, since it is larger than the sum of its proper divisors (33698247459).

101043023421 is an equidigital number, since it uses as much as digits as its factorization.

101043023421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4309915.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 101043023421 its reverse (124320340101), we get a palindrome (225363363522).

The spelling of 101043023421 in words is "one hundred one billion, forty-three million, twenty-three thousand, four hundred twenty-one".