3612121403 has 6 divisors (see below), whose sum is σ = 3970348452. Its totient is φ = 3283746620.

The previous prime is 3612121399. The next prime is 3612121417. The reversal of 3612121403 is 3041212163.

It is not a de Polignac number, because 3612121403 - 2² = 3612121399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3612121433) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14926001 + ... + 14926242.

It is an arithmetic number, because the mean of its divisors is an integer number (661724742).

Almost surely, 2^3612121403 is an apocalyptic number.

3612121403 is a deficient number, since it is larger than the sum of its proper divisors (358227049).

3612121403 is a wasteful number, since it uses less digits than its factorization.

3612121403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29852265 (or 29852254 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 3612121403 is about 60100.9268064978. The cubic root of 3612121403 is about 1534.3370758366.

Adding to 3612121403 its reverse (3041212163), we get a palindrome (6653333566).

The spelling of 3612121403 in words is "three billion, six hundred twelve million, one hundred twenty-one thousand, four hundred three".