426121021023 has 8 divisors (see below), whose sum is σ = 568169063088. Its totient is φ = 284076829824.

The previous prime is 426121021009. The next prime is 426121021093. The reversal of 426121021023 is 320120121624.

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

It is not a de Polignac number, because 426121021023 - 2²¹ = 426118923871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 426121020984 and 426121021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426121021093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 693786 + ... + 1154807.

It is an arithmetic number, because the mean of its divisors is an integer number (71021132886).

Almost surely, 2^426121021023 is an apocalyptic number.

426121021023 is a deficient number, since it is larger than the sum of its proper divisors (142048042065).

426121021023 is a wasteful number, since it uses less digits than its factorization.

426121021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925433.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 426121021023 its reverse (320120121624), we get a palindrome (746241142647).

The spelling of 426121021023 in words is "four hundred twenty-six billion, one hundred twenty-one million, twenty-one thousand, twenty-three".