1303142111 has 4 divisors (see below), whose sum is σ = 1327729752. Its totient is φ = 1278554472.

The previous prime is 1303142063. The next prime is 1303142149. The reversal of 1303142111 is 1112413031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1303142111 - 2²⁶ = 1236033247 is a prime.

It is a super-2 number, since 2×1303142111² = 3396358722923072642, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1303142111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303142171) 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, 12293741 + ... + 12293846.

It is an arithmetic number, because the mean of its divisors is an integer number (331932438).

Almost surely, 2^1303142111 is an apocalyptic number.

1303142111 is a deficient number, since it is larger than the sum of its proper divisors (24587641).

1303142111 is an equidigital number, since it uses as much as digits as its factorization.

1303142111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24587640.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1303142111 is about 36099.0596968952. The cubic root of 1303142111 is about 1092.2714775285.

Adding to 1303142111 its reverse (1112413031), we get a palindrome (2415555142).

The spelling of 1303142111 in words is "one billion, three hundred three million, one hundred forty-two thousand, one hundred eleven".