140431320430320 has 80 divisors (see below), whose sum is σ = 436886335868832. Its totient is φ = 37315083939840.

The previous prime is 140431320430319. The next prime is 140431320430327. The reversal of 140431320430320 is 23034023134041.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×140431320430320² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140431320430327) 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 15 ways as a sum of consecutive naturals, for example, 1041090037 + ... + 1041224916.

Almost surely, 2^{140431320430320} is an apocalyptic number.

140431320430320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140431320430320 is an abundant number, since it is smaller than the sum of its proper divisors (296455015438512).

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

140431320430320 is a wasteful number, since it uses less digits than its factorization.

140431320430320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2082315250 (or 2082315244 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 140431320430320 its reverse (23034023134041), we get a palindrome (163465343564361).

The spelling of 140431320430320 in words is "one hundred forty trillion, four hundred thirty-one billion, three hundred twenty million, four hundred thirty thousand, three hundred twenty".