1242037170431 has 4 divisors (see below), whose sum is σ = 1242057115992. Its totient is φ = 1242017224872.

The previous prime is 1242037170371. The next prime is 1242037170457. The reversal of 1242037170431 is 1340717302421.

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

It is a cyclic number.

It is not a de Polignac number, because 1242037170431 - 2¹⁰ = 1242037169407 is a prime.

It is a super-2 number, since 2×1242037170431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1242037170391 and 1242037170400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242037170631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9879080 + ... + 10004013.

It is an arithmetic number, because the mean of its divisors is an integer number (310514278998).

Almost surely, 2^{1242037170431} is an apocalyptic number.

1242037170431 is a deficient number, since it is larger than the sum of its proper divisors (19945561).

1242037170431 is an equidigital number, since it uses as much as digits as its factorization.

1242037170431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19945560.

The product of its (nonzero) digits is 28224, while the sum is 35.

The spelling of 1242037170431 in words is "one trillion, two hundred forty-two billion, thirty-seven million, one hundred seventy thousand, four hundred thirty-one".