242013431 has 12 divisors (see below), whose sum is σ = 280018200. Its totient is φ = 208430640.

The previous prime is 242013427. The next prime is 242013433. The reversal of 242013431 is 134310242.

It is not a de Polignac number, because 242013431 - 2² = 242013427 is a prime.

It is a super-2 number, since 2×242013431² = 117141001568783522, which contains 22 as substring.

242013431 is a modest number, since divided by 13431 gives 242 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242013433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 50336 + ... + 54933.

It is an arithmetic number, because the mean of its divisors is an integer number (23334850).

Almost surely, 2^242013431 is an apocalyptic number.

242013431 is a deficient number, since it is larger than the sum of its proper divisors (38004769).

242013431 is a wasteful number, since it uses less digits than its factorization.

242013431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105310 (or 105299 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 242013431 is about 15556.7808688044. The cubic root of 242013431 is about 623.1794968311.

Adding to 242013431 its reverse (134310242), we get a palindrome (376323673).

It can be divided in two parts, 2420 and 13431, that added together give a palindrome (15851).

The spelling of 242013431 in words is "two hundred forty-two million, thirteen thousand, four hundred thirty-one".