1201657106311 has 2 divisors, whose sum is σ = 1201657106312. Its totient is φ = 1201657106310.

The previous prime is 1201657106201. The next prime is 1201657106339. The reversal of 1201657106311 is 1136017561021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1201657106311 - 2¹⁵ = 1201657073543 is a prime.

It is a super-2 number, since 2×1201657106311² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201657106371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600828553155 + 600828553156.

It is an arithmetic number, because the mean of its divisors is an integer number (600828553156).

Almost surely, 2^{1201657106311} is an apocalyptic number.

1201657106311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201657106311 is an equidigital number, since it uses as much as digits as its factorization.

1201657106311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7560, while the sum is 34.

The spelling of 1201657106311 in words is "one trillion, two hundred one billion, six hundred fifty-seven million, one hundred six thousand, three hundred eleven".