2001431512 has 32 divisors (see below), whose sum is σ = 3823200000. Its totient is φ = 981973408.

The previous prime is 2001431507. The next prime is 2001431521. The reversal of 2001431512 is 2151341002.

It is a super-2 number, since 2×2001431512² = 8011456194453212288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2001431512.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 279189 + ... + 286267.

It is an arithmetic number, because the mean of its divisors is an integer number (119475000).

Almost surely, 2^2001431512 is an apocalyptic number.

It is an amenable number.

2001431512 is a deficient number, since it is larger than the sum of its proper divisors (1821768488).

2001431512 is a wasteful number, since it uses less digits than its factorization.

2001431512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7743 (or 7739 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2001431512 is about 44737.3614778520. The cubic root of 2001431512 is about 1260.2215768886.

Adding to 2001431512 its reverse (2151341002), we get a palindrome (4152772514).

The spelling of 2001431512 in words is "two billion, one million, four hundred thirty-one thousand, five hundred twelve".