1151123450250 has 64 divisors (see below), whose sum is σ = 3024425439360. Its totient is φ = 290810131200.

The previous prime is 1151123450221. The next prime is 1151123450333. The reversal of 1151123450250 is 520543211511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40376047 + ... + 40404546.

It is an arithmetic number, because the mean of its divisors is an integer number (47256647490).

Almost surely, 2^{1151123450250} is an apocalyptic number.

1151123450250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1151123450250 is an abundant number, since it is smaller than the sum of its proper divisors (1873301989110).

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

1151123450250 is a wasteful number, since it uses less digits than its factorization.

1151123450250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80780632 (or 80780622 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 1151123450250 its reverse (520543211511), we get a palindrome (1671666661761).

The spelling of 1151123450250 in words is "one trillion, one hundred fifty-one billion, one hundred twenty-three million, four hundred fifty thousand, two hundred fifty".