1125131342 has 16 divisors (see below), whose sum is σ = 1767452832. Its totient is φ = 536157600.

The previous prime is 1125131339. The next prime is 1125131353. The reversal of 1125131342 is 2431315211.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31409 + ... + 56892.

It is an arithmetic number, because the mean of its divisors is an integer number (110465802).

Almost surely, 2^1125131342 is an apocalyptic number.

1125131342 is a deficient number, since it is larger than the sum of its proper divisors (642321490).

1125131342 is a wasteful number, since it uses less digits than its factorization.

1125131342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88603.

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

The square root of 1125131342 is about 33542.9775362892. The cubic root of 1125131342 is about 1040.0823843761.

Adding to 1125131342 its reverse (2431315211), we get a palindrome (3556446553).

The spelling of 1125131342 in words is "one billion, one hundred twenty-five million, one hundred thirty-one thousand, three hundred forty-two".