140031212542 has 32 divisors (see below), whose sum is σ = 244545184800. Its totient is φ = 59573397888.

The previous prime is 140031212513. The next prime is 140031212609. The reversal of 140031212542 is 245212130041.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3812317 + ... + 3848872.

It is an arithmetic number, because the mean of its divisors is an integer number (7642037025).

Almost surely, 2^140031212542 is an apocalyptic number.

140031212542 is a deficient number, since it is larger than the sum of its proper divisors (104513972258).

140031212542 is a wasteful number, since it uses less digits than its factorization.

140031212542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7661260.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 140031212542 its reverse (245212130041), we get a palindrome (385243342583).

The spelling of 140031212542 in words is "one hundred forty billion, thirty-one million, two hundred twelve thousand, five hundred forty-two".