101243021131 has 8 divisors (see below), whose sum is σ = 117667434240. Its totient is φ = 85308889128.

The previous prime is 101243021123. The next prime is 101243021147. The reversal of 101243021131 is 131120342101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101243021131 - 2³ = 101243021123 is a prime.

It is a super-2 number, since 2×101243021131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101243021099 and 101243021108.

It is not an unprimeable number, because it can be changed into a prime (101243021531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122569831 + ... + 122570656.

It is an arithmetic number, because the mean of its divisors is an integer number (14708429280).

Almost surely, 2^101243021131 is an apocalyptic number.

101243021131 is a deficient number, since it is larger than the sum of its proper divisors (16424413109).

101243021131 is an equidigital number, since it uses as much as digits as its factorization.

101243021131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245140553.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 101243021131 its reverse (131120342101), we get a palindrome (232363363232).

The spelling of 101243021131 in words is "one hundred one billion, two hundred forty-three million, twenty-one thousand, one hundred thirty-one".