650861270123 has 2 divisors, whose sum is σ = 650861270124. Its totient is φ = 650861270122.

The previous prime is 650861270089. The next prime is 650861270149. The reversal of 650861270123 is 321072168056.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 650861270123 - 2¹⁰ = 650861269099 is a prime.

It is a super-2 number, since 2×650861270123² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (650861270183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 325430635061 + 325430635062.

It is an arithmetic number, because the mean of its divisors is an integer number (325430635062).

Almost surely, 2^650861270123 is an apocalyptic number.

650861270123 is a deficient number, since it is larger than the sum of its proper divisors (1).

650861270123 is an equidigital number, since it uses as much as digits as its factorization.

650861270123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 650861270123 in words is "six hundred fifty billion, eight hundred sixty-one million, two hundred seventy thousand, one hundred twenty-three".