101211311045 has 8 divisors (see below), whose sum is σ = 130796155896. Its totient is φ = 74740660416.

The previous prime is 101211310987. The next prime is 101211311057. The reversal of 101211311045 is 540113112101.

It can be written as a sum of positive squares in 4 ways, for example, as 6522916 + 101204788129 = 2554^2 + 318127^2 .

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 101211311045 - 2²⁰ = 101210262469 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 778548482 + ... + 778548611.

It is an arithmetic number, because the mean of its divisors is an integer number (16349519487).

Almost surely, 2^101211311045 is an apocalyptic number.

It is an amenable number.

101211311045 is a deficient number, since it is larger than the sum of its proper divisors (29584844851).

101211311045 is a wasteful number, since it uses less digits than its factorization.

101211311045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557097111.

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 101211311045 its reverse (540113112101), we get a palindrome (641324423146).

The spelling of 101211311045 in words is "one hundred one billion, two hundred eleven million, three hundred eleven thousand, forty-five".