99911970035213 has 6 divisors (see below), whose sum is σ = 116224128408366. Its totient is φ = 85638831458712.

The previous prime is 99911970035203. The next prime is 99911970035219. The reversal of 99911970035213 is 31253007911999.

It can be written as a sum of positive squares in only one way, i.e., 60547727062564 + 39364242972649 = 7781242^2 + 6274093^2 .

It is not a de Polignac number, because 99911970035213 - 2¹⁶ = 99911969969677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99911970035219) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1019509898270 + ... + 1019509898367.

It is an arithmetic number, because the mean of its divisors is an integer number (19370688068061).

Almost surely, 2^{99911970035213} is an apocalyptic number.

It is an amenable number.

99911970035213 is a deficient number, since it is larger than the sum of its proper divisors (16312158373153).

99911970035213 is a wasteful number, since it uses less digits than its factorization.

99911970035213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2039019796651 (or 2039019796644 counting only the distinct ones).

The product of its (nonzero) digits is 4133430, while the sum is 59.

The spelling of 99911970035213 in words is "ninety-nine trillion, nine hundred eleven billion, nine hundred seventy million, thirty-five thousand, two hundred thirteen".