3123140315541 has 4 divisors (see below), whose sum is σ = 4164187087392. Its totient is φ = 2082093543692.

The previous prime is 3123140315483. The next prime is 3123140315549. The reversal of 3123140315541 is 1455130413213.

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 3123140315541 - 2⁴¹ = 924117059989 is a prime.

It is a super-2 number, since 2×3123140315541² (a number of 26 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123140315549) 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, 520523385921 + ... + 520523385926.

It is an arithmetic number, because the mean of its divisors is an integer number (1041046771848).

Almost surely, 2^{3123140315541} is an apocalyptic number.

It is an amenable number.

3123140315541 is a deficient number, since it is larger than the sum of its proper divisors (1041046771851).

3123140315541 is a wasteful number, since it uses less digits than its factorization.

3123140315541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041046771850.

The product of its (nonzero) digits is 21600, while the sum is 33.

Adding to 3123140315541 its reverse (1455130413213), we get a palindrome (4578270728754).

The spelling of 3123140315541 in words is "three trillion, one hundred twenty-three billion, one hundred forty million, three hundred fifteen thousand, five hundred forty-one".