1121305153145 has 16 divisors (see below), whose sum is σ = 1360740260880. Its totient is φ = 886928891904.

The previous prime is 1121305153127. The next prime is 1121305153147. The reversal of 1121305153145 is 5413515031211.

It can be written as a sum of positive squares in 8 ways, for example, as 171309898816 + 949995254329 = 413896^2 + 974677^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121305153145 - 2¹⁴ = 1121305136761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121305153147) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18168359 + ... + 18229971.

It is an arithmetic number, because the mean of its divisors is an integer number (85046266305).

Almost surely, 2^{1121305153145} is an apocalyptic number.

It is an amenable number.

1121305153145 is a deficient number, since it is larger than the sum of its proper divisors (239435107735).

1121305153145 is an equidigital number, since it uses as much as digits as its factorization.

1121305153145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102604.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 1121305153145 in words is "one trillion, one hundred twenty-one billion, three hundred five million, one hundred fifty-three thousand, one hundred forty-five".