11631503534 has 16 divisors (see below), whose sum is σ = 20096729088. Its totient is φ = 4945677912.

The previous prime is 11631503519. The next prime is 11631503537. The reversal of 11631503534 is 43530513611.

11631503534 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11631503534² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11631503534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631503537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3269174 + ... + 3272729.

It is an arithmetic number, because the mean of its divisors is an integer number (1256045568).

Almost surely, 2^11631503534 is an apocalyptic number.

11631503534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11631503534 is a deficient number, since it is larger than the sum of its proper divisors (8465225554).

11631503534 is a wasteful number, since it uses less digits than its factorization.

11631503534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6542039.

The product of its (nonzero) digits is 16200, while the sum is 32.

The spelling of 11631503534 in words is "eleven billion, six hundred thirty-one million, five hundred three thousand, five hundred thirty-four".