3735123603421 has 16 divisors (see below), whose sum is σ = 4345737033600. Its totient is φ = 3143883091968.

The previous prime is 3735123603319. The next prime is 3735123603433. The reversal of 3735123603421 is 1243063215373.

It is a cyclic number.

It is not a de Polignac number, because 3735123603421 - 2⁷ = 3735123603293 is a prime.

It is a super-2 number, since 2×3735123603421² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3735123603221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4483860 + ... + 5251213.

It is an arithmetic number, because the mean of its divisors is an integer number (271608564600).

Almost surely, 2^{3735123603421} is an apocalyptic number.

It is an amenable number.

3735123603421 is a deficient number, since it is larger than the sum of its proper divisors (610613430179).

3735123603421 is an equidigital number, since it uses as much as digits as its factorization.

3735123603421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9736068.

The product of its (nonzero) digits is 272160, while the sum is 40.

Adding to 3735123603421 its reverse (1243063215373), we get a palindrome (4978186818794).

The spelling of 3735123603421 in words is "three trillion, seven hundred thirty-five billion, one hundred twenty-three million, six hundred three thousand, four hundred twenty-one".