3123150046421 has 16 divisors (see below), whose sum is σ = 3416199141888. Its totient is φ = 2842397068800.

The previous prime is 3123150046321. The next prime is 3123150046439. The reversal of 3123150046421 is 1246400513213.

It is a cyclic number.

It is not a de Polignac number, because 3123150046421 - 2¹⁰ = 3123150045397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3123150046321) 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, 1633400 + ... + 2985681.

It is an arithmetic number, because the mean of its divisors is an integer number (213512446368).

Almost surely, 2^{3123150046421} is an apocalyptic number.

3123150046421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3123150046421 is a deficient number, since it is larger than the sum of its proper divisors (293049095467).

3123150046421 is a wasteful number, since it uses less digits than its factorization.

3123150046421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4620412.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 3123150046421 its reverse (1246400513213), we get a palindrome (4369550559634).

The spelling of 3123150046421 in words is "three trillion, one hundred twenty-three billion, one hundred fifty million, forty-six thousand, four hundred twenty-one".