1242032302421 has 4 divisors (see below), whose sum is σ = 1246271320812. Its totient is φ = 1237793284032.

The previous prime is 1242032302409. The next prime is 1242032302531.

1242032302421 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1013825458321 + 228206844100 = 1006889^2 + 477710^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242032302421 - 2¹⁰ = 1242032301397 is a prime.

It is a super-2 number, since 2×1242032302421² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242032302921) 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, 2119508756 + ... + 2119509341.

It is an arithmetic number, because the mean of its divisors is an integer number (311567830203).

Almost surely, 2^{1242032302421} is an apocalyptic number.

It is an amenable number.

1242032302421 is a deficient number, since it is larger than the sum of its proper divisors (4239018391).

1242032302421 is an equidigital number, since it uses as much as digits as its factorization.

1242032302421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239018390.

The product of its (nonzero) digits is 4608, while the sum is 26.

The spelling of 1242032302421 in words is "one trillion, two hundred forty-two billion, thirty-two million, three hundred two thousand, four hundred twenty-one".