1201657106263 has 4 divisors (see below), whose sum is σ = 1216134902808. Its totient is φ = 1187179309720.

The previous prime is 1201657106201. The next prime is 1201657106311. The reversal of 1201657106263 is 3626017561021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1201657106263 - 2²⁹ = 1201120235351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201657106063) 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, 7238898148 + ... + 7238898313.

It is an arithmetic number, because the mean of its divisors is an integer number (304033725702).

Almost surely, 2^{1201657106263} is an apocalyptic number.

1201657106263 is a deficient number, since it is larger than the sum of its proper divisors (14477796545).

1201657106263 is an equidigital number, since it uses as much as digits as its factorization.

1201657106263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14477796544.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 1201657106263 in words is "one trillion, two hundred one billion, six hundred fifty-seven million, one hundred six thousand, two hundred sixty-three".