1121053757 has 4 divisors (see below), whose sum is σ = 1121155776. Its totient is φ = 1120951740.

The previous prime is 1121053723. The next prime is 1121053811. The reversal of 1121053757 is 7573501211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7573501211 = 293 ⋅25848127.

It is a cyclic number.

It is not a de Polignac number, because 1121053757 - 2¹⁰ = 1121052733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121053357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32219 + ... + 57272.

It is an arithmetic number, because the mean of its divisors is an integer number (280288944).

Almost surely, 2^1121053757 is an apocalyptic number.

It is an amenable number.

1121053757 is a deficient number, since it is larger than the sum of its proper divisors (102019).

1121053757 is an equidigital number, since it uses as much as digits as its factorization.

1121053757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102018.

The product of its (nonzero) digits is 7350, while the sum is 32.

The square root of 1121053757 is about 33482.1408664380. The cubic root of 1121053757 is about 1038.8244103644.

Adding to 1121053757 its reverse (7573501211), we get a palindrome (8694554968).

The spelling of 1121053757 in words is "one billion, one hundred twenty-one million, fifty-three thousand, seven hundred fifty-seven".