1041320121155 has 4 divisors (see below), whose sum is σ = 1249584145392. Its totient is φ = 833056096920.

The previous prime is 1041320121151. The next prime is 1041320121169. The reversal of 1041320121155 is 5511210231401.

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

It is not a de Polignac number, because 1041320121155 - 2² = 1041320121151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1041320121151) 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, 104132012111 + ... + 104132012120.

It is an arithmetic number, because the mean of its divisors is an integer number (312396036348).

Almost surely, 2^{1041320121155} is an apocalyptic number.

1041320121155 is a deficient number, since it is larger than the sum of its proper divisors (208264024237).

1041320121155 is an equidigital number, since it uses as much as digits as its factorization.

1041320121155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208264024236.

The product of its (nonzero) digits is 1200, while the sum is 26.

Adding to 1041320121155 its reverse (5511210231401), we get a palindrome (6552530352556).

The spelling of 1041320121155 in words is "one trillion, forty-one billion, three hundred twenty million, one hundred twenty-one thousand, one hundred fifty-five".