1234311143 has 16 divisors (see below), whose sum is σ = 1343518176. Its totient is φ = 1127208960.

The previous prime is 1234311103. The next prime is 1234311179. The reversal of 1234311143 is 3411134321.

It is a cyclic number.

It is not a de Polignac number, because 1234311143 - 2²⁰ = 1233262567 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1234311103) 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, 509471 + ... + 511887.

It is an arithmetic number, because the mean of its divisors is an integer number (83969886).

Almost surely, 2^1234311143 is an apocalyptic number.

1234311143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1234311143 is a deficient number, since it is larger than the sum of its proper divisors (109207033).

1234311143 is a wasteful number, since it uses less digits than its factorization.

1234311143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834.

The product of its digits is 864, while the sum is 23.

The square root of 1234311143 is about 35132.7645225934. The cubic root of 1234311143 is about 1072.6916085340.

Adding to 1234311143 its reverse (3411134321), we get a palindrome (4645445464).

The spelling of 1234311143 in words is "one billion, two hundred thirty-four million, three hundred eleven thousand, one hundred forty-three".