140320021302 has 20 divisors (see below), whose sum is σ = 314420788836. Its totient is φ = 46773340380.

The previous prime is 140320021291. The next prime is 140320021319. The reversal of 140320021302 is 203120023041.

140320021302 is a `hidden beast` number, since 1 + 40 + 320 + 0 + 2 + 1 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 433086324 + ... + 433086647.

Almost surely, 2^140320021302 is an apocalyptic number.

140320021302 is an abundant number, since it is smaller than the sum of its proper divisors (174100767534).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140320021302 is an equidigital number, since it uses as much as digits as its factorization.

140320021302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 866172985 (or 866172976 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 140320021302 its reverse (203120023041), we get a palindrome (343440044343).

The spelling of 140320021302 in words is "one hundred forty billion, three hundred twenty million, twenty-one thousand, three hundred two".