130440023223421 has 8 divisors (see below), whose sum is σ = 130479598325304. Its totient is φ = 130400451202560.

The previous prime is 130440023223403. The next prime is 130440023223467. The reversal of 130440023223421 is 124322320044031.

It can be written as a sum of positive squares in 4 ways, for example, as 70389767599321 + 60050255624100 = 8389861^2 + 7749210^2 .

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 130440023223421 - 2¹⁷ = 130440023092349 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 (130440023223221) 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, 85373815 + ... + 86888251.

It is an arithmetic number, because the mean of its divisors is an integer number (16309949790663).

Almost surely, 2^{130440023223421} is an apocalyptic number.

It is an amenable number.

130440023223421 is a deficient number, since it is larger than the sum of its proper divisors (39575101883).

130440023223421 is a wasteful number, since it uses less digits than its factorization.

130440023223421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540511.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 130440023223421 its reverse (124322320044031), we get a palindrome (254762343267452).

The spelling of 130440023223421 in words is "one hundred thirty trillion, four hundred forty billion, twenty-three million, two hundred twenty-three thousand, four hundred twenty-one".