3501131401421 has 4 divisors (see below), whose sum is σ = 3685401475200. Its totient is φ = 3316861327644.

The previous prime is 3501131401399. The next prime is 3501131401489. The reversal of 3501131401421 is 1241041311053.

3501131401421 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 3501131401421 - 2¹⁰ = 3501131400397 is a prime.

It is a super-3 number, since 3×3501131401421³ (a number of 39 digits) contains 333 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 (3501131401121) 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, 92135036861 + ... + 92135036898.

It is an arithmetic number, because the mean of its divisors is an integer number (921350368800).

Almost surely, 2^{3501131401421} is an apocalyptic number.

It is an amenable number.

3501131401421 is a deficient number, since it is larger than the sum of its proper divisors (184270073779).

3501131401421 is a wasteful number, since it uses less digits than its factorization.

3501131401421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184270073778.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 3501131401421 its reverse (1241041311053), we get a palindrome (4742172712474).

The spelling of 3501131401421 in words is "three trillion, five hundred one billion, one hundred thirty-one million, four hundred one thousand, four hundred twenty-one".