101331201890028 has 48 divisors (see below), whose sum is σ = 257936564471040. Its totient is φ = 30706115764800.

The previous prime is 101331201890027. The next prime is 101331201890041. The reversal of 101331201890028 is 820098102133101.

It is a happy number.

It is a super-2 number, since 2×101331201890028² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101331201890021) 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, 9475513 + ... + 17101103.

It is an arithmetic number, because the mean of its divisors is an integer number (5373678426480).

Almost surely, 2^{101331201890028} is an apocalyptic number.

It is an amenable number.

101331201890028 is an abundant number, since it is smaller than the sum of its proper divisors (156605362581012).

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

101331201890028 is a wasteful number, since it uses less digits than its factorization.

101331201890028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7726278 (or 7726276 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 39.

The spelling of 101331201890028 in words is "one hundred one trillion, three hundred thirty-one billion, two hundred one million, eight hundred ninety thousand, twenty-eight".