120041455421 has 2 divisors, whose sum is σ = 120041455422. Its totient is φ = 120041455420.

The previous prime is 120041455397. The next prime is 120041455447. The reversal of 120041455421 is 124554140021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 108260740900 + 11780714521 = 329030^2 + 108539^2 .

It is a cyclic number.

It is not a de Polignac number, because 120041455421 - 2³⁴ = 102861586237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120041455481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60020727710 + 60020727711.

It is an arithmetic number, because the mean of its divisors is an integer number (60020727711).

Almost surely, 2^120041455421 is an apocalyptic number.

It is an amenable number.

120041455421 is a deficient number, since it is larger than the sum of its proper divisors (1).

120041455421 is an equidigital number, since it uses as much as digits as its factorization.

120041455421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6400, while the sum is 29.

Adding to 120041455421 its reverse (124554140021), we get a palindrome (244595595442).

The spelling of 120041455421 in words is "one hundred twenty billion, forty-one million, four hundred fifty-five thousand, four hundred twenty-one".