140430233101021 has 8 divisors (see below), whose sum is σ = 144558729452984. Its totient is φ = 136319267520000.

The previous prime is 140430233101013. The next prime is 140430233101033. The reversal of 140430233101021 is 120101332034041.

It can be written as a sum of positive squares in 4 ways, for example, as 911377624921 + 139518855476100 = 954661^2 + 11811810^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 140430233101021 - 2³ = 140430233101013 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 (140430233101421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4382676480 + ... + 4382708521.

It is an arithmetic number, because the mean of its divisors is an integer number (18069841181623).

Almost surely, 2^{140430233101021} is an apocalyptic number.

It is an amenable number.

140430233101021 is a deficient number, since it is larger than the sum of its proper divisors (4128496351963).

140430233101021 is an equidigital number, since it uses as much as digits as its factorization.

140430233101021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8765385471.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 140430233101021 its reverse (120101332034041), we get a palindrome (260531565135062).

The spelling of 140430233101021 in words is "one hundred forty trillion, four hundred thirty billion, two hundred thirty-three million, one hundred one thousand, twenty-one".