1121310342 has 12 divisors (see below), whose sum is σ = 2429505780. Its totient is φ = 373770108.

The previous prime is 1121310319. The next prime is 1121310343. The reversal of 1121310342 is 2430131211.

1121310342 is a `hidden beast` number, since 1 + 12 + 1 + 310 + 342 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 62295019 = 1121310342 / (1 + 1 + 2 + 1 + 3 + 1 + 0 + 3 + 4 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121310343) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31147492 + ... + 31147527.

It is an arithmetic number, because the mean of its divisors is an integer number (202458815).

Almost surely, 2^1121310342 is an apocalyptic number.

1121310342 is an abundant number, since it is smaller than the sum of its proper divisors (1308195438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121310342 is a wasteful number, since it uses less digits than its factorization.

1121310342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62295027 (or 62295024 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1121310342 is about 33485.9723167777. The cubic root of 1121310342 is about 1038.9036591446.

Adding to 1121310342 its reverse (2430131211), we get a palindrome (3551441553).

The spelling of 1121310342 in words is "one billion, one hundred twenty-one million, three hundred ten thousand, three hundred forty-two".