120430420132421 has 4 divisors (see below), whose sum is σ = 137634765865632. Its totient is φ = 103226074399212.

The previous prime is 120430420132409. The next prime is 120430420132433. The reversal of 120430420132421 is 124231024034021.

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 an interprime number because it is at equal distance from previous prime (120430420132409) and next prime (120430420132433).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120430420132421 is a prime.

It is a super-2 number, since 2×120430420132421² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120430420132471) 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, 8602172866595 + ... + 8602172866608.

It is an arithmetic number, because the mean of its divisors is an integer number (34408691466408).

Almost surely, 2^{120430420132421} is an apocalyptic number.

It is an amenable number.

120430420132421 is a deficient number, since it is larger than the sum of its proper divisors (17204345733211).

120430420132421 is an equidigital number, since it uses as much as digits as its factorization.

120430420132421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17204345733210.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 120430420132421 its reverse (124231024034021), we get a palindrome (244661444166442).

The spelling of 120430420132421 in words is "one hundred twenty trillion, four hundred thirty billion, four hundred twenty million, one hundred thirty-two thousand, four hundred twenty-one".