1121550342 has 16 divisors (see below), whose sum is σ = 2447019072. Its totient is φ = 339863720.

The previous prime is 1121550323. The next prime is 1121550371. The reversal of 1121550342 is 2430551211.

It is a happy number.

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, 8496528 + ... + 8496659.

It is an arithmetic number, because the mean of its divisors is an integer number (152938692).

Almost surely, 2^1121550342 is an apocalyptic number.

1121550342 is an abundant number, since it is smaller than the sum of its proper divisors (1325468730).

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

1121550342 is a wasteful number, since it uses less digits than its factorization.

1121550342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16993203.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 1121550342 is about 33489.5557151778. Note that the first 3 decimals coincide. The cubic root of 1121550342 is about 1038.9777745439.

The spelling of 1121550342 in words is "one billion, one hundred twenty-one million, five hundred fifty thousand, three hundred forty-two".