5215215402123 has 16 divisors (see below), whose sum is σ = 7046023418880. Its totient is φ = 3430663606656.

The previous prime is 5215215402109. The next prime is 5215215402139. The reversal of 5215215402123 is 3212045125125.

It is not a de Polignac number, because 5215215402123 - 2⁴ = 5215215402107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5215215402193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6465790 + ... + 7227507.

It is an arithmetic number, because the mean of its divisors is an integer number (440376463680).

Almost surely, 2^{5215215402123} is an apocalyptic number.

5215215402123 is a deficient number, since it is larger than the sum of its proper divisors (1830808016757).

5215215402123 is a wasteful number, since it uses less digits than its factorization.

5215215402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13694986.

The product of its (nonzero) digits is 24000, while the sum is 33.

The spelling of 5215215402123 in words is "five trillion, two hundred fifteen billion, two hundred fifteen million, four hundred two thousand, one hundred twenty-three".