10123212649 has 16 divisors (see below), whose sum is σ = 11813691456. Its totient is φ = 8572262400.

The previous prime is 10123212643. The next prime is 10123212667. The reversal of 10123212649 is 94621232101.

It is a cyclic number.

It is not a de Polignac number, because 10123212649 - 2⁹ = 10123212137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10123212649.

It is not an unprimeable number, because it can be changed into a prime (10123212643) 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, 260907 + ... + 297184.

It is an arithmetic number, because the mean of its divisors is an integer number (738355716).

Almost surely, 2^10123212649 is an apocalyptic number.

It is an amenable number.

10123212649 is a deficient number, since it is larger than the sum of its proper divisors (1690478807).

10123212649 is a wasteful number, since it uses less digits than its factorization.

10123212649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558216.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 10123212649 in words is "ten billion, one hundred twenty-three million, two hundred twelve thousand, six hundred forty-nine".