140233210031021 has 4 divisors (see below), whose sum is σ = 140233270969344. Its totient is φ = 140233149092700.

The previous prime is 140233210030967. The next prime is 140233210031041. The reversal of 140233210031021 is 120130012332041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140233210031021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140233210031041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26876075 + ... + 31666856.

It is an arithmetic number, because the mean of its divisors is an integer number (35058317742336).

Almost surely, 2^{140233210031021} is an apocalyptic number.

It is an amenable number.

140233210031021 is a deficient number, since it is larger than the sum of its proper divisors (60938323).

140233210031021 is an equidigital number, since it uses as much as digits as its factorization.

140233210031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60938322.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 140233210031021 its reverse (120130012332041), we get a palindrome (260363222363062).

The spelling of 140233210031021 in words is "one hundred forty trillion, two hundred thirty-three billion, two hundred ten million, thirty-one thousand, twenty-one".