101203231121 has 4 divisors (see below), whose sum is σ = 101206322544. Its totient is φ = 101200139700.

The previous prime is 101203231117. The next prime is 101203231123. The reversal of 101203231121 is 121132302101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101203231121 - 2² = 101203231117 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 101203231121.

It is not an unprimeable number, because it can be changed into a prime (101203231123) 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, 1496075 + ... + 1562256.

It is an arithmetic number, because the mean of its divisors is an integer number (25301580636).

Almost surely, 2^101203231121 is an apocalyptic number.

It is an amenable number.

101203231121 is a deficient number, since it is larger than the sum of its proper divisors (3091423).

101203231121 is an equidigital number, since it uses as much as digits as its factorization.

101203231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091422.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 101203231121 its reverse (121132302101), we get a palindrome (222335533222).

The spelling of 101203231121 in words is "one hundred one billion, two hundred three million, two hundred thirty-one thousand, one hundred twenty-one".