242011431313 has 4 divisors (see below), whose sum is σ = 246577684788. Its totient is φ = 237445177840.

The previous prime is 242011431287. The next prime is 242011431397. The reversal of 242011431313 is 313134110242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313134110242 = 2 ⋅156567055121.

It can be written as a sum of positive squares in 2 ways, for example, as 185904981889 + 56106449424 = 431167^2 + 236868^2 .

It is a cyclic number.

It is not a de Polignac number, because 242011431313 - 2¹⁷ = 242011300241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242011431413) 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, 2283126658 + ... + 2283126763.

It is an arithmetic number, because the mean of its divisors is an integer number (61644421197).

Almost surely, 2^242011431313 is an apocalyptic number.

It is an amenable number.

242011431313 is a deficient number, since it is larger than the sum of its proper divisors (4566253475).

242011431313 is an equidigital number, since it uses as much as digits as its factorization.

242011431313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4566253474.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 242011431313 its reverse (313134110242), we get a palindrome (555145541555).

The spelling of 242011431313 in words is "two hundred forty-two billion, eleven million, four hundred thirty-one thousand, three hundred thirteen".