1121260402578 has 48 divisors (see below), whose sum is σ = 2367021384000. Its totient is φ = 354032307552.

The previous prime is 1121260402567. The next prime is 1121260402579. The reversal of 1121260402578 is 8752040621211.

It is not an unprimeable number, because it can be changed into a prime (1121260402579) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1387953 + ... + 2041796.

It is an arithmetic number, because the mean of its divisors is an integer number (49312945500).

Almost surely, 2^{1121260402578} is an apocalyptic number.

1121260402578 is an abundant number, since it is smaller than the sum of its proper divisors (1245760981422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121260402578 is a wasteful number, since it uses less digits than its factorization.

1121260402578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3429903 (or 3429880 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 39.

The spelling of 1121260402578 in words is "one trillion, one hundred twenty-one billion, two hundred sixty million, four hundred two thousand, five hundred seventy-eight".