101001121099511 has 2 divisors, whose sum is σ = 101001121099512. Its totient is φ = 101001121099510.

The previous prime is 101001121099493. The next prime is 101001121099573. The reversal of 101001121099511 is 115990121100101.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101001121099511 - 2²⁶ = 101001053990647 is a prime.

It is a super-2 number, since 2×101001121099511² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101001121099811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500560549755 + 50500560549756.

It is an arithmetic number, because the mean of its divisors is an integer number (50500560549756).

Almost surely, 2^{101001121099511} is an apocalyptic number.

101001121099511 is a deficient number, since it is larger than the sum of its proper divisors (1).

101001121099511 is an equidigital number, since it uses as much as digits as its factorization.

101001121099511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 810, while the sum is 32.

Adding to 101001121099511 its reverse (115990121100101), we get a palindrome (216991242199612).

The spelling of 101001121099511 in words is "one hundred one trillion, one billion, one hundred twenty-one million, ninety-nine thousand, five hundred eleven".