156431142010243 has 4 divisors (see below), whose sum is σ = 156491470258888. Its totient is φ = 156370813761600.

The previous prime is 156431142010147. The next prime is 156431142010249. The reversal of 156431142010243 is 342010241134651.

It is a happy number.

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 156431142010243 - 2⁹ = 156431142009731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (156431142010249) 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, 30164120433 + ... + 30164125618.

It is an arithmetic number, because the mean of its divisors is an integer number (39122867564722).

Almost surely, 2^{156431142010243} is an apocalyptic number.

156431142010243 is a deficient number, since it is larger than the sum of its proper divisors (60328248645).

156431142010243 is an equidigital number, since it uses as much as digits as its factorization.

156431142010243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60328248644.

The product of its (nonzero) digits is 69120, while the sum is 37.

Adding to 156431142010243 its reverse (342010241134651), we get a palindrome (498441383144894).

The spelling of 156431142010243 in words is "one hundred fifty-six trillion, four hundred thirty-one billion, one hundred forty-two million, ten thousand, two hundred forty-three".