101101203121 has 2 divisors, whose sum is σ = 101101203122. Its totient is φ = 101101203120.

The previous prime is 101101203103. The next prime is 101101203157. The reversal of 101101203121 is 121302101101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 65630754225 + 35470448896 = 256185^2 + 188336^2 .

It is a cyclic number.

It is not a de Polignac number, because 101101203121 - 2²⁷ = 100966985393 is a prime.

It is not a weakly prime, because it can be changed into another prime (101101203521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550601560 + 50550601561.

It is an arithmetic number, because the mean of its divisors is an integer number (50550601561).

Almost surely, 2^101101203121 is an apocalyptic number.

It is an amenable number.

101101203121 is a deficient number, since it is larger than the sum of its proper divisors (1).

101101203121 is an equidigital number, since it uses as much as digits as its factorization.

101101203121 is an evil number, because the sum of its binary digits is even.

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

Adding to 101101203121 its reverse (121302101101), we get a palindrome (222403304222).

The spelling of 101101203121 in words is "one hundred one billion, one hundred one million, two hundred three thousand, one hundred twenty-one".