3521123451131 has 48 divisors (see below), whose sum is σ = 4312847817600. Its totient is φ = 2852185754880.

The previous prime is 3521123451077. The next prime is 3521123451191. The reversal of 3521123451131 is 1311543211253.

It is not a de Polignac number, because 3521123451131 - 2³⁰ = 3520049709307 is a prime.

It is a super-2 number, since 2×3521123451131² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3521123451191) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 257592365 + ... + 257606033.

It is an arithmetic number, because the mean of its divisors is an integer number (89850996200).

Almost surely, 2^{3521123451131} is an apocalyptic number.

3521123451131 is a deficient number, since it is larger than the sum of its proper divisors (791724366469).

3521123451131 is a wasteful number, since it uses less digits than its factorization.

3521123451131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19380 (or 19369 counting only the distinct ones).

The product of its digits is 10800, while the sum is 32.

Adding to 3521123451131 its reverse (1311543211253), we get a palindrome (4832666662384).

The spelling of 3521123451131 in words is "three trillion, five hundred twenty-one billion, one hundred twenty-three million, four hundred fifty-one thousand, one hundred thirty-one".