12121131003 has 8 divisors (see below), whose sum is σ = 16164499008. Its totient is φ = 8079258504.

The previous prime is 12121130969. The next prime is 12121131007. The reversal of 12121131003 is 30013112121.

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 12121131003 - 2⁹ = 12121130491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12121131007) 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, 354825 + ... + 387482.

It is an arithmetic number, because the mean of its divisors is an integer number (2020562376).

Almost surely, 2^12121131003 is an apocalyptic number.

12121131003 is a deficient number, since it is larger than the sum of its proper divisors (4043368005).

12121131003 is an equidigital number, since it uses as much as digits as its factorization.

12121131003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747753.

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

Adding to 12121131003 its reverse (30013112121), we get a palindrome (42134243124).

The spelling of 12121131003 in words is "twelve billion, one hundred twenty-one million, one hundred thirty-one thousand, three".