990213434100111 has 16 divisors (see below), whose sum is σ = 1454911092204416. Its totient is φ = 595190901354336.

The previous prime is 990213434099947. The next prime is 990213434100133. The reversal of 990213434100111 is 111001434312099.

It is not a de Polignac number, because 990213434100111 - 2¹³ = 990213434091919 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

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 990213434100111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990213434100511) 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, 295233580345 + ... + 295233583698.

It is an arithmetic number, because the mean of its divisors is an integer number (90931943262776).

Almost surely, 2^{990213434100111} is an apocalyptic number.

990213434100111 is a deficient number, since it is larger than the sum of its proper divisors (464697658104305).

990213434100111 is a wasteful number, since it uses less digits than its factorization.

990213434100111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590467164102.

The product of its (nonzero) digits is 23328, while the sum is 39.

The spelling of 990213434100111 in words is "nine hundred ninety trillion, two hundred thirteen billion, four hundred thirty-four million, one hundred thousand, one hundred eleven".