140021321023 has 2 divisors, whose sum is σ = 140021321024. Its totient is φ = 140021321022.

The previous prime is 140021320973. The next prime is 140021321057. The reversal of 140021321023 is 320123120041.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 140021321023 - 2⁹ = 140021320511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (140021381023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70010660511 + 70010660512.

It is an arithmetic number, because the mean of its divisors is an integer number (70010660512).

Almost surely, 2^140021321023 is an apocalyptic number.

140021321023 is a deficient number, since it is larger than the sum of its proper divisors (1).

140021321023 is an equidigital number, since it uses as much as digits as its factorization.

140021321023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 140021321023 its reverse (320123120041), we get a palindrome (460144441064).

The spelling of 140021321023 in words is "one hundred forty billion, twenty-one million, three hundred twenty-one thousand, twenty-three".