1121040400187 has 2 divisors, whose sum is σ = 1121040400188. Its totient is φ = 1121040400186.

The previous prime is 1121040400177. The next prime is 1121040400231. The reversal of 1121040400187 is 7810040401211.

It is a weak prime.

It is an emirp because it is prime and its reverse (7810040401211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121040400187 - 2⁴ = 1121040400171 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121040400177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560520200093 + 560520200094.

It is an arithmetic number, because the mean of its divisors is an integer number (560520200094).

Almost surely, 2^{1121040400187} is an apocalyptic number.

1121040400187 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121040400187 is an equidigital number, since it uses as much as digits as its factorization.

1121040400187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1792, while the sum is 29.

Adding to 1121040400187 its reverse (7810040401211), we get a palindrome (8931080801398).

The spelling of 1121040400187 in words is "one trillion, one hundred twenty-one billion, forty million, four hundred thousand, one hundred eighty-seven".