1310001043 has 4 divisors (see below), whose sum is σ = 1410770368. Its totient is φ = 1209231720.

The previous prime is 1310000981. The next prime is 1310001067. The reversal of 1310001043 is 3401000131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3401000131 = 4357 ⋅780583.

It is a cyclic number.

It is not a de Polignac number, because 1310001043 - 2¹⁷ = 1309869971 is a prime.

It is a super-2 number, since 2×1310001043² = 3432205465322175698, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 100769311 = 1310001043 / (1 + 3 + 1 + 0 + 0 + 0 + 1 + 0 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1310001743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50384643 + ... + 50384668.

It is an arithmetic number, because the mean of its divisors is an integer number (352692592).

Almost surely, 2^1310001043 is an apocalyptic number.

1310001043 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1310001043 is a deficient number, since it is larger than the sum of its proper divisors (100769325).

1310001043 is a wasteful number, since it uses less digits than its factorization.

1310001043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100769324.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1310001043 is about 36193.9365502013. The cubic root of 1310001043 is about 1094.1844717538.

Adding to 1310001043 its reverse (3401000131), we get a palindrome (4711001174).

The spelling of 1310001043 in words is "one billion, three hundred ten million, one thousand, forty-three".