11125405240 has 32 divisors (see below), whose sum is σ = 25839653760. Its totient is φ = 4306608000.

The previous prime is 11125405237. The next prime is 11125405243. The reversal of 11125405240 is 4250452111.

It is an interprime number because it is at equal distance from previous prime (11125405237) and next prime (11125405243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11125405243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4484811 + ... + 4487290.

It is an arithmetic number, because the mean of its divisors is an integer number (807489180).

Almost surely, 2^11125405240 is an apocalyptic number.

11125405240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11125405240 is an abundant number, since it is smaller than the sum of its proper divisors (14714248520).

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

11125405240 is a wasteful number, since it uses less digits than its factorization.

11125405240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8972143 (or 8972139 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 11125405240 its reverse (4250452111), we get a palindrome (15375857351).

The spelling of 11125405240 in words is "eleven billion, one hundred twenty-five million, four hundred five thousand, two hundred forty".