231435011140 has 24 divisors (see below), whose sum is σ = 511593183360. Its totient is φ = 87701688288.

The previous prime is 231435011051. The next prime is 231435011201. The reversal of 231435011140 is 41110534132.

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, 304519372 + ... + 304520131.

It is an arithmetic number, because the mean of its divisors is an integer number (21316382640).

Almost surely, 2^231435011140 is an apocalyptic number.

231435011140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231435011140 is an abundant number, since it is smaller than the sum of its proper divisors (280158172220).

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

231435011140 is a wasteful number, since it uses less digits than its factorization.

231435011140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609039531 (or 609039529 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 231435011140 its reverse (41110534132), we get a palindrome (272545545272).

The spelling of 231435011140 in words is "two hundred thirty-one billion, four hundred thirty-five million, eleven thousand, one hundred forty".