1234420124021 has 6 divisors (see below), whose sum is σ = 1435958103510. Its totient is φ = 1058074391976.

The previous prime is 1234420123943. The next prime is 1234420124029. The reversal of 1234420124021 is 1204210244321.

It can be written as a sum of positive squares in only one way, i.e., 1031262591121 + 203157532900 = 1015511^2 + 450730^2 .

It is not a de Polignac number, because 1234420124021 - 2³⁸ = 959542217077 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234420124029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12596123666 + ... + 12596123763.

It is an arithmetic number, because the mean of its divisors is an integer number (239326350585).

Almost surely, 2^{1234420124021} is an apocalyptic number.

It is an amenable number.

1234420124021 is a deficient number, since it is larger than the sum of its proper divisors (201537979489).

1234420124021 is an equidigital number, since it uses as much as digits as its factorization.

1234420124021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25192247443 (or 25192247436 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 1234420124021 its reverse (1204210244321), we get a palindrome (2438630368342).

The spelling of 1234420124021 in words is "one trillion, two hundred thirty-four billion, four hundred twenty million, one hundred twenty-four thousand, twenty-one".