3523121431 has 4 divisors (see below), whose sum is σ = 3609051264. Its totient is φ = 3437191600.

The previous prime is 3523121423. The next prime is 3523121461. The reversal of 3523121431 is 1341213253.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3523121431 - 2³ = 3523121423 is a prime.

It is a super-2 number, since 2×3523121431² = 24824769235142975522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3523121396 and 3523121405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3523121461) 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, 42964855 + ... + 42964936.

It is an arithmetic number, because the mean of its divisors is an integer number (902262816).

Almost surely, 2^3523121431 is an apocalyptic number.

3523121431 is a deficient number, since it is larger than the sum of its proper divisors (85929833).

3523121431 is an equidigital number, since it uses as much as digits as its factorization.

3523121431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85929832.

The product of its digits is 2160, while the sum is 25.

The square root of 3523121431 is about 59355.8879219240. The cubic root of 3523121431 is about 1521.6304974327.

Adding to 3523121431 its reverse (1341213253), we get a palindrome (4864334684).

The spelling of 3523121431 in words is "three billion, five hundred twenty-three million, one hundred twenty-one thousand, four hundred thirty-one".