140230242433021 has 4 divisors (see below), whose sum is σ = 151017184158652. Its totient is φ = 129443300707392.

The previous prime is 140230242433019. The next prime is 140230242433087. The reversal of 140230242433021 is 120334242032041.

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

It can be written as a sum of positive squares in 2 ways, for example, as 16371038500996 + 123859203932025 = 4046114^2 + 11129205^2 .

It is a cyclic number.

It is not a de Polignac number, because 140230242433021 - 2¹ = 140230242433019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140230242431021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5393470862796 + ... + 5393470862821.

It is an arithmetic number, because the mean of its divisors is an integer number (37754296039663).

Almost surely, 2^{140230242433021} is an apocalyptic number.

It is an amenable number.

140230242433021 is a deficient number, since it is larger than the sum of its proper divisors (10786941725631).

140230242433021 is a wasteful number, since it uses less digits than its factorization.

140230242433021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10786941725630.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 140230242433021 its reverse (120334242032041), we get a palindrome (260564484465062).

The spelling of 140230242433021 in words is "one hundred forty trillion, two hundred thirty billion, two hundred forty-two million, four hundred thirty-three thousand, twenty-one".