1301023140 has 48 divisors (see below), whose sum is σ = 3653361600. Its totient is φ = 345939840.

The previous prime is 1301023133. The next prime is 1301023147. The reversal of 1301023140 is 413201031.

It is an interprime number because it is at equal distance from previous prime (1301023133) and next prime (1301023147).

It is a super-2 number, since 2×1301023140² = 3385322421630919200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (1301023147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10126 + ... + 52005.

It is an arithmetic number, because the mean of its divisors is an integer number (76111700).

Almost surely, 2^1301023140 is an apocalyptic number.

1301023140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301023140 is an abundant number, since it is smaller than the sum of its proper divisors (2352338460).

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

1301023140 is a wasteful number, since it uses less digits than its factorization.

1301023140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62492 (or 62490 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1301023140 is about 36069.6983630304. The cubic root of 1301023140 is about 1091.6791279065.

Adding to 1301023140 its reverse (413201031), we get a palindrome (1714224171).

The spelling of 1301023140 in words is "one billion, three hundred one million, twenty-three thousand, one hundred forty".