2001431232142 has 8 divisors (see below), whose sum is σ = 3003001927632. Its totient is φ = 1000430589600.

The previous prime is 2001431232131. The next prime is 2001431232217. The reversal of 2001431232142 is 2412321341002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142504459 + ... + 142518502.

It is an arithmetic number, because the mean of its divisors is an integer number (375375240954).

Almost surely, 2^{2001431232142} is an apocalyptic number.

2001431232142 is a deficient number, since it is larger than the sum of its proper divisors (1001570695490).

2001431232142 is a wasteful number, since it uses less digits than its factorization.

2001431232142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285026474.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 2001431232142 its reverse (2412321341002), we get a palindrome (4413752573144).

The spelling of 2001431232142 in words is "two trillion, one billion, four hundred thirty-one million, two hundred thirty-two thousand, one hundred forty-two".