231433044142 has 16 divisors (see below), whose sum is σ = 359153112240. Its totient is φ = 111716070592.

The previous prime is 231433044137. The next prime is 231433044151. The reversal of 231433044142 is 241440334132.

It is a super-2 number, since 2×231433044142² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 476853 + ... + 830815.

It is an arithmetic number, because the mean of its divisors is an integer number (22447069515).

Almost surely, 2^231433044142 is an apocalyptic number.

231433044142 is a deficient number, since it is larger than the sum of its proper divisors (127720068098).

231433044142 is a wasteful number, since it uses less digits than its factorization.

231433044142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365267.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 231433044142 its reverse (241440334132), we get a palindrome (472873378274).

The spelling of 231433044142 in words is "two hundred thirty-one billion, four hundred thirty-three million, forty-four thousand, one hundred forty-two".