91002023023002 has 64 divisors (see below), whose sum is σ = 229214397941760. Its totient is φ = 23442381595584.

The previous prime is 91002023022971. The next prime is 91002023023007. The reversal of 91002023023002 is 20032032020019.

It is not an unprimeable number, because it can be changed into a prime (91002023023007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1938004102 + ... + 1938051057.

It is an arithmetic number, because the mean of its divisors is an integer number (3581474967840).

Almost surely, 2^{91002023023002} is an apocalyptic number.

91002023023002 is an abundant number, since it is smaller than the sum of its proper divisors (138212374918758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91002023023002 is a wasteful number, since it uses less digits than its factorization.

91002023023002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3876055227.

The product of its (nonzero) digits is 1296, while the sum is 24.

The spelling of 91002023023002 in words is "ninety-one trillion, two billion, twenty-three million, twenty-three thousand, two".