11531550030 has 128 divisors (see below), whose sum is σ = 37159105536. Its totient is φ = 2211840000.

The previous prime is 11531549999. The next prime is 11531550049. The reversal of 11531550030 is 3005513511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 161971 + ... + 222030.

It is an arithmetic number, because the mean of its divisors is an integer number (290305512).

Almost surely, 2^11531550030 is an apocalyptic number.

11531550030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11531550030 is an abundant number, since it is smaller than the sum of its proper divisors (25627555506).

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

11531550030 is a wasteful number, since it uses less digits than its factorization.

11531550030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384042.

The product of its (nonzero) digits is 1125, while the sum is 24.

The spelling of 11531550030 in words is "eleven billion, five hundred thirty-one million, five hundred fifty thousand, thirty".