1312030143 has 28 divisors (see below), whose sum is σ = 2030636608. Its totient is φ = 846456480.

The previous prime is 1312030127. The next prime is 1312030157. The reversal of 1312030143 is 3410302131.

It is not a de Polignac number, because 1312030143 - 2⁴ = 1312030127 is a prime.

It is a super-2 number, since 2×1312030143² = 3442846192281200898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312030103) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 6430 + ... + 51627.

It is an arithmetic number, because the mean of its divisors is an integer number (72522736).

Almost surely, 2^1312030143 is an apocalyptic number.

1312030143 is a deficient number, since it is larger than the sum of its proper divisors (718606465).

1312030143 is an frugal number, since it uses more digits than its factorization.

1312030143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58106 (or 58091 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1312030143 is about 36221.9566423461. The cubic root of 1312030143 is about 1094.7491187293.

Adding to 1312030143 its reverse (3410302131), we get a palindrome (4722332274).

The spelling of 1312030143 in words is "one billion, three hundred twelve million, thirty thousand, one hundred forty-three".