101020201001191 has 16 divisors (see below), whose sum is σ = 102283963112448. Its totient is φ = 99761907880800.

The previous prime is 101020201001183. The next prime is 101020201001201. The reversal of 101020201001191 is 191100102020101.

It is a cyclic number.

It is not a de Polignac number, because 101020201001191 - 2³ = 101020201001183 is a prime.

It is a super-2 number, since 2×101020201001191² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020201701191) 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, 943875261 + ... + 943982281.

It is an arithmetic number, because the mean of its divisors is an integer number (6392747694528).

Almost surely, 2^{101020201001191} is an apocalyptic number.

101020201001191 is a deficient number, since it is larger than the sum of its proper divisors (1263762111257).

101020201001191 is a wasteful number, since it uses less digits than its factorization.

101020201001191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132462.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 101020201001191 its reverse (191100102020101), we get a palindrome (292120303021292).

The spelling of 101020201001191 in words is "one hundred one trillion, twenty billion, two hundred one million, one thousand, one hundred ninety-one".