1211635445053 has 8 divisors (see below), whose sum is σ = 1321793772480. Its totient is φ = 1101478726080.

The previous prime is 1211635445051. The next prime is 1211635445093. The reversal of 1211635445053 is 3505445361121.

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 1211635445053 - 2¹ = 1211635445051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1211635444997 and 1211635445015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211635445051) 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, 1611301 + ... + 2240437.

It is an arithmetic number, because the mean of its divisors is an integer number (165224221560).

Almost surely, 2^{1211635445053} is an apocalyptic number.

It is an amenable number.

1211635445053 is a deficient number, since it is larger than the sum of its proper divisors (110158327427).

1211635445053 is a wasteful number, since it uses less digits than its factorization.

1211635445053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 804227.

The product of its (nonzero) digits is 216000, while the sum is 40.

The spelling of 1211635445053 in words is "one trillion, two hundred eleven billion, six hundred thirty-five million, four hundred forty-five thousand, fifty-three".