499001012101 has 4 divisors (see below), whose sum is σ = 499014530892. Its totient is φ = 498987493312.

The previous prime is 499001012093. The next prime is 499001012197. The reversal of 499001012101 is 101210100994.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 257282272900 + 241718739201 = 507230^2 + 491649^2 .

It is a cyclic number.

It is not a de Polignac number, because 499001012101 - 2³ = 499001012093 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 499001012101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (499001012701) 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, 6703876 + ... + 6777901.

It is an arithmetic number, because the mean of its divisors is an integer number (124753632723).

Almost surely, 2^499001012101 is an apocalyptic number.

It is an amenable number.

499001012101 is a deficient number, since it is larger than the sum of its proper divisors (13518791).

499001012101 is a wasteful number, since it uses less digits than its factorization.

499001012101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13518790.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 499001012101 in words is "four hundred ninety-nine billion, one million, twelve thousand, one hundred one".