1121003011321 has 4 divisors (see below), whose sum is σ = 1121095660644. Its totient is φ = 1120910362000.

The previous prime is 1121003011313. The next prime is 1121003011361. The reversal of 1121003011321 is 1231103001211.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1090011169296 + 30991842025 = 1044036^2 + 176045^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121003011321 - 2³ = 1121003011313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121003011295 and 1121003011304.

It is not an unprimeable number, because it can be changed into a prime (1121003011361) 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, 46306510 + ... + 46330711.

It is an arithmetic number, because the mean of its divisors is an integer number (280273915161).

Almost surely, 2^{1121003011321} is an apocalyptic number.

It is an amenable number.

1121003011321 is a deficient number, since it is larger than the sum of its proper divisors (92649323).

1121003011321 is an equidigital number, since it uses as much as digits as its factorization.

1121003011321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92649322.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1121003011321 its reverse (1231103001211), we get a palindrome (2352106012532).

The spelling of 1121003011321 in words is "one trillion, one hundred twenty-one billion, three million, eleven thousand, three hundred twenty-one".