131121331010 has 16 divisors (see below), whose sum is σ = 239342599872. Its totient is φ = 51709820400.

The previous prime is 131121331001. The next prime is 131121331013. The reversal of 131121331010 is 10133121131.

It is a self number, because there is not a number n which added to its sum of digits gives 131121331010.

It is not an unprimeable number, because it can be changed into a prime (131121331013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92338256 + ... + 92339675.

It is an arithmetic number, because the mean of its divisors is an integer number (14958912492).

Almost surely, 2^131121331010 is an apocalyptic number.

131121331010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131121331010 is a deficient number, since it is larger than the sum of its proper divisors (108221268862).

131121331010 is a wasteful number, since it uses less digits than its factorization.

131121331010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184678009.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 131121331010 its reverse (10133121131), we get a palindrome (141254452141).

The spelling of 131121331010 in words is "one hundred thirty-one billion, one hundred twenty-one million, three hundred thirty-one thousand, ten".