1310420140 has 24 divisors (see below), whose sum is σ = 2752569792. Its totient is φ = 524037120.

The previous prime is 1310420131. The next prime is 1310420143. The reversal of 1310420140 is 410240131.

It is not an unprimeable number, because it can be changed into a prime (1310420143) 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, 134845 + ... + 144235.

It is an arithmetic number, because the mean of its divisors is an integer number (114690408).

Almost surely, 2^1310420140 is an apocalyptic number.

1310420140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310420140 is an abundant number, since it is smaller than the sum of its proper divisors (1442149652).

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

1310420140 is a wasteful number, since it uses less digits than its factorization.

1310420140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16377 (or 16375 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1310420140 is about 36199.7256895684. The cubic root of 1310420140 is about 1094.3011435531.

Adding to 1310420140 its reverse (410240131), we get a palindrome (1720660271).

Subtracting from 1310420140 its reverse (410240131), we obtain a square (900180009 = 30003²).

The spelling of 1310420140 in words is "one billion, three hundred ten million, four hundred twenty thousand, one hundred forty".