1123620737597 has 4 divisors (see below), whose sum is σ = 1124654428416. Its totient is φ = 1122587046780.

The previous prime is 1123620737587. The next prime is 1123620737611. The reversal of 1123620737597 is 7957370263211.

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.

It is a cyclic number.

It is not a de Polignac number, because 1123620737597 - 2⁸ = 1123620737341 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 (1123620737537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 516843779 + ... + 516845952.

It is an arithmetic number, because the mean of its divisors is an integer number (281163607104).

Almost surely, 2^{1123620737597} is an apocalyptic number.

It is an amenable number.

1123620737597 is a deficient number, since it is larger than the sum of its proper divisors (1033690819).

1123620737597 is a wasteful number, since it uses less digits than its factorization.

1123620737597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033690818.

The product of its (nonzero) digits is 3333960, while the sum is 53.

The spelling of 1123620737597 in words is "one trillion, one hundred twenty-three billion, six hundred twenty million, seven hundred thirty-seven thousand, five hundred ninety-seven".