231435011142 has 12 divisors (see below), whose sum is σ = 501442524180. Its totient is φ = 77145003708.

The previous prime is 231435011051. The next prime is 231435011201. The reversal of 231435011142 is 241110534132.

231435011142 is a `hidden beast` number, since 2 + 3 + 1 + 43 + 501 + 114 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6428750292 + ... + 6428750327.

It is an arithmetic number, because the mean of its divisors is an integer number (41786877015).

Almost surely, 2^231435011142 is an apocalyptic number.

231435011142 is an abundant number, since it is smaller than the sum of its proper divisors (270007513038).

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

231435011142 is a wasteful number, since it uses less digits than its factorization.

231435011142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12857500627 (or 12857500624 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 231435011142 its reverse (241110534132), we get a palindrome (472545545274).

The spelling of 231435011142 in words is "two hundred thirty-one billion, four hundred thirty-five million, eleven thousand, one hundred forty-two".