530400123021 has 8 divisors (see below), whose sum is σ = 708270061024. Its totient is φ = 353065133520.

The previous prime is 530400123013. The next prime is 530400123079. The reversal of 530400123021 is 120321004035.

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

It is not a de Polignac number, because 530400123021 - 2³ = 530400123013 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 (530400113021) 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, 133734811 + ... + 133738776.

It is an arithmetic number, because the mean of its divisors is an integer number (88533757628).

Almost surely, 2^530400123021 is an apocalyptic number.

It is an amenable number.

530400123021 is a deficient number, since it is larger than the sum of its proper divisors (177869938003).

530400123021 is a wasteful number, since it uses less digits than its factorization.

530400123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267474251.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 530400123021 its reverse (120321004035), we get a palindrome (650721127056).

The spelling of 530400123021 in words is "five hundred thirty billion, four hundred million, one hundred twenty-three thousand, twenty-one".