1121453442 has 48 divisors (see below), whose sum is σ = 2449530720. Its totient is φ = 370800000.

The previous prime is 1121453441. The next prime is 1121453477. The reversal of 1121453442 is 2443541211.

1121453442 is a `hidden beast` number, since 1 + 1 + 214 + 5 + 3 + 442 = 666.

It is not an unprimeable number, because it can be changed into a prime (1121453441) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1811409 + ... + 1812027.

It is an arithmetic number, because the mean of its divisors is an integer number (51031890).

Almost surely, 2^1121453442 is an apocalyptic number.

1121453442 is an abundant number, since it is smaller than the sum of its proper divisors (1328077278).

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

1121453442 is a wasteful number, since it uses less digits than its factorization.

1121453442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1279 (or 1276 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 1121453442 is about 33488.1089642279. The cubic root of 1121453442 is about 1038.9478517242.

Adding to 1121453442 its reverse (2443541211), we get a palindrome (3564994653).

The spelling of 1121453442 in words is "one billion, one hundred twenty-one million, four hundred fifty-three thousand, four hundred forty-two".