3121340453 has 16 divisors (see below), whose sum is σ = 3974344704. Its totient is φ = 2380461360.

The previous prime is 3121340447. The next prime is 3121340477. The reversal of 3121340453 is 3540431213.

It is a cyclic number.

It is not a de Polignac number, because 3121340453 - 2¹⁶ = 3121274917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121340423) 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, 427625 + ... + 434862.

It is an arithmetic number, because the mean of its divisors is an integer number (248396544).

Almost surely, 2^3121340453 is an apocalyptic number.

It is an amenable number.

3121340453 is a deficient number, since it is larger than the sum of its proper divisors (853004251).

3121340453 is a wasteful number, since it uses less digits than its factorization.

3121340453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862552.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 3121340453 is about 55868.9578657057. The cubic root of 3121340453 is about 1461.4379485704.

Adding to 3121340453 its reverse (3540431213), we get a palindrome (6661771666).

The spelling of 3121340453 in words is "three billion, one hundred twenty-one million, three hundred forty thousand, four hundred fifty-three".