1131434123 has 2 divisors, whose sum is σ = 1131434124. Its totient is φ = 1131434122.

The previous prime is 1131434113. The next prime is 1131434131. The reversal of 1131434123 is 3214341311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1131434123 - 2¹⁶ = 1131368587 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1131434113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565717061 + 565717062.

It is an arithmetic number, because the mean of its divisors is an integer number (565717062).

Almost surely, 2^1131434123 is an apocalyptic number.

1131434123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131434123 is an equidigital number, since it uses as much as digits as its factorization.

1131434123 is an evil number, because the sum of its binary digits is even.

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

The square root of 1131434123 is about 33636.7971572800. The cubic root of 1131434123 is about 1042.0208865635.

Adding to 1131434123 its reverse (3214341311), we get a palindrome (4345775434).

The spelling of 1131434123 in words is "one billion, one hundred thirty-one million, four hundred thirty-four thousand, one hundred twenty-three".