140312300420 has 12 divisors (see below), whose sum is σ = 294655830924. Its totient is φ = 56124920160.

The previous prime is 140312300407. The next prime is 140312300431. The reversal of 140312300420 is 24003213041.

It can be written as a sum of positive squares in 2 ways, for example, as 41308936516 + 99003363904 = 203246^2 + 314648^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 7015615021 = 140312300420 / (1 + 4 + 0 + 3 + 1 + 2 + 3 + 0 + 0 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 140312300392 and 140312300401.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3507807491 + ... + 3507807530.

It is an arithmetic number, because the mean of its divisors is an integer number (24554652577).

Almost surely, 2^140312300420 is an apocalyptic number.

140312300420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140312300420 is an abundant number, since it is smaller than the sum of its proper divisors (154343530504).

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

140312300420 is a wasteful number, since it uses less digits than its factorization.

140312300420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7015615030 (or 7015615028 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 140312300420 its reverse (24003213041), we get a palindrome (164315513461).

The spelling of 140312300420 in words is "one hundred forty billion, three hundred twelve million, three hundred thousand, four hundred twenty".