3541320121 has 4 divisors (see below), whose sum is σ = 3556137600. Its totient is φ = 3526502644.

The previous prime is 3541320089. The next prime is 3541320127. The reversal of 3541320121 is 1210231453.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1210231453 = 7789 ⋅155377.

It is a cyclic number.

It is not a de Polignac number, because 3541320121 - 2⁵ = 3541320089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3541320092 and 3541320101.

It is not an unprimeable number, because it can be changed into a prime (3541320127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7408381 + ... + 7408858.

It is an arithmetic number, because the mean of its divisors is an integer number (889034400).

Almost surely, 2^3541320121 is an apocalyptic number.

It is an amenable number.

3541320121 is a deficient number, since it is larger than the sum of its proper divisors (14817479).

3541320121 is a wasteful number, since it uses less digits than its factorization.

3541320121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14817478.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3541320121 is about 59508.9919339926. The cubic root of 3541320121 is about 1524.2459941489.

Adding to 3541320121 its reverse (1210231453), we get a palindrome (4751551574).

The spelling of 3541320121 in words is "three billion, five hundred forty-one million, three hundred twenty thousand, one hundred twenty-one".