1201011711657 has 8 divisors (see below), whose sum is σ = 1640406240480. Its totient is φ = 781145828640.

The previous prime is 1201011711629. The next prime is 1201011711659. The reversal of 1201011711657 is 7561171101021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1201011711657 - 2²⁰ = 1201010663081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1201011711659) 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, 4882161307 + ... + 4882161552.

It is an arithmetic number, because the mean of its divisors is an integer number (205050780060).

Almost surely, 2^{1201011711657} is an apocalyptic number.

It is an amenable number.

1201011711657 is a deficient number, since it is larger than the sum of its proper divisors (439394528823).

1201011711657 is an equidigital number, since it uses as much as digits as its factorization.

1201011711657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9764322903.

The product of its (nonzero) digits is 2940, while the sum is 33.

Adding to 1201011711657 its reverse (7561171101021), we get a palindrome (8762182812678).

The spelling of 1201011711657 in words is "one trillion, two hundred one billion, eleven million, seven hundred eleven thousand, six hundred fifty-seven".