231230401242 has 16 divisors (see below), whose sum is σ = 486800844960. Its totient is φ = 73020126672.

The previous prime is 231230401201. The next prime is 231230401291. The reversal of 231230401242 is 242104032132.

It is a happy number.

It is a super-3 number, since 3×231230401242³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1014168313 + ... + 1014168540.

It is an arithmetic number, because the mean of its divisors is an integer number (30425052810).

Almost surely, 2^231230401242 is an apocalyptic number.

231230401242 is an abundant number, since it is smaller than the sum of its proper divisors (255570443718).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231230401242 is a wasteful number, since it uses less digits than its factorization.

231230401242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028336877.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 231230401242 its reverse (242104032132), we get a palindrome (473334433374).

The spelling of 231230401242 in words is "two hundred thirty-one billion, two hundred thirty million, four hundred one thousand, two hundred forty-two".