4242155131 has 2 divisors, whose sum is σ = 4242155132. Its totient is φ = 4242155130.

The previous prime is 4242155111. The next prime is 4242155161. The reversal of 4242155131 is 1315512424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4242155131 - 2¹⁵ = 4242122363 is a prime.

It is a super-2 number, since 2×4242155131² = 35991760310939254322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 4242155131.

It is not a weakly prime, because it can be changed into another prime (4242155111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2121077565 + 2121077566.

It is an arithmetic number, because the mean of its divisors is an integer number (2121077566).

Almost surely, 2^4242155131 is an apocalyptic number.

4242155131 is a deficient number, since it is larger than the sum of its proper divisors (1).

4242155131 is an equidigital number, since it uses as much as digits as its factorization.

4242155131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4800, while the sum is 28.

The square root of 4242155131 is about 65131.8288626997. The cubic root of 4242155131 is about 1618.8086463927.

Adding to 4242155131 its reverse (1315512424), we get a palindrome (5557667555).

The spelling of 4242155131 in words is "four billion, two hundred forty-two million, one hundred fifty-five thousand, one hundred thirty-one".