121312000131 has 8 divisors (see below), whose sum is σ = 184856381184. Its totient is φ = 69321142920.

The previous prime is 121312000097. The next prime is 121312000157. The reversal of 121312000131 is 131000213121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 121312000131 - 2¹¹ = 121311998083 is a prime.

It is a super-2 number, since 2×121312000131² (a number of 23 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 121312000131.

It is not an unprimeable number, because it can be changed into a prime (121312000171) 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, 2888380935 + ... + 2888380976.

It is an arithmetic number, because the mean of its divisors is an integer number (23107047648).

Almost surely, 2^121312000131 is an apocalyptic number.

121312000131 is a deficient number, since it is larger than the sum of its proper divisors (63544381053).

121312000131 is an equidigital number, since it uses as much as digits as its factorization.

121312000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5776761921.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121312000131 its reverse (131000213121), we get a palindrome (252312213252).

The spelling of 121312000131 in words is "one hundred twenty-one billion, three hundred twelve million, one hundred thirty-one", and thus it is an aban number.