140031212434 has 4 divisors (see below), whose sum is σ = 210046818654. Its totient is φ = 70015606216.

The previous prime is 140031212423. The next prime is 140031212513. The reversal of 140031212434 is 434212130041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 128094557409 + 11936655025 = 357903^2 + 109255^2 .

It is a junction number, because it is equal to n+sod(n) for n = 140031212399 and 140031212408.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35007803107 + ... + 35007803110.

Almost surely, 2^140031212434 is an apocalyptic number.

140031212434 is a deficient number, since it is larger than the sum of its proper divisors (70015606220).

140031212434 is an equidigital number, since it uses as much as digits as its factorization.

140031212434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70015606219.

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

Adding to 140031212434 its reverse (434212130041), we get a palindrome (574243342475).

The spelling of 140031212434 in words is "one hundred forty billion, thirty-one million, two hundred twelve thousand, four hundred thirty-four".