101131120201 has 4 divisors (see below), whose sum is σ = 101173596804. Its totient is φ = 101088643600.

The previous prime is 101131120199. The next prime is 101131120213. The reversal of 101131120201 is 102021131101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102021131101 = 443 ⋅230296007.

It can be written as a sum of positive squares in 2 ways, for example, as 48849840400 + 52281279801 = 221020^2 + 228651^2 .

It is a cyclic number.

It is not a de Polignac number, because 101131120201 - 2¹ = 101131120199 is a prime.

It is a super-2 number, since 2×101131120201² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101131120271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21234730 + ... + 21239491.

It is an arithmetic number, because the mean of its divisors is an integer number (25293399201).

Almost surely, 2^101131120201 is an apocalyptic number.

It is an amenable number.

101131120201 is a deficient number, since it is larger than the sum of its proper divisors (42476603).

101131120201 is an equidigital number, since it uses as much as digits as its factorization.

101131120201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42476602.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 101131120201 its reverse (102021131101), we get a palindrome (203152251302).

The spelling of 101131120201 in words is "one hundred one billion, one hundred thirty-one million, one hundred twenty thousand, two hundred one".