1023122401421 has 4 divisors (see below), whose sum is σ = 1026070881312. Its totient is φ = 1020173921532.

The previous prime is 1023122401393. The next prime is 1023122401429. The reversal of 1023122401421 is 1241042213201.

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.

It is a cyclic number.

It is not a de Polignac number, because 1023122401421 - 2²⁶ = 1023055292557 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 (1023122401429) 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, 1474239425 + ... + 1474240118.

It is an arithmetic number, because the mean of its divisors is an integer number (256517720328).

Almost surely, 2^{1023122401421} is an apocalyptic number.

It is an amenable number.

1023122401421 is a deficient number, since it is larger than the sum of its proper divisors (2948479891).

1023122401421 is an equidigital number, since it uses as much as digits as its factorization.

1023122401421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2948479890.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 1023122401421 its reverse (1241042213201), we get a palindrome (2264164614622).

The spelling of 1023122401421 in words is "one trillion, twenty-three billion, one hundred twenty-two million, four hundred one thousand, four hundred twenty-one".