1142351123 has 2 divisors, whose sum is σ = 1142351124. Its totient is φ = 1142351122.

The previous prime is 1142351113. The next prime is 1142351129. The reversal of 1142351123 is 3211532411.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1142351123 is a prime.

It is a super-2 number, since 2×1142351123² = 2609932176438722258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1142351129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 571175561 + 571175562.

It is an arithmetic number, because the mean of its divisors is an integer number (571175562).

Almost surely, 2^1142351123 is an apocalyptic number.

1142351123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1142351123 is an equidigital number, since it uses as much as digits as its factorization.

1142351123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 23.

The square root of 1142351123 is about 33798.6852259078. The cubic root of 1142351123 is about 1045.3615875904.

Adding to 1142351123 its reverse (3211532411), we get a palindrome (4353883534).

The spelling of 1142351123 in words is "one billion, one hundred forty-two million, three hundred fifty-one thousand, one hundred twenty-three".