123846965261381 has 4 divisors (see below), whose sum is σ = 123848103638112. Its totient is φ = 123845826884652.

The previous prime is 123846965261359. The next prime is 123846965261407. The reversal of 123846965261381 is 183162569648321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123846965261381 is a prime.

It is a super-2 number, since 2×123846965261381² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123846965267381) 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, 569025161 + ... + 569242766.

It is an arithmetic number, because the mean of its divisors is an integer number (30962025909528).

Almost surely, 2^{123846965261381} is an apocalyptic number.

It is an amenable number.

123846965261381 is a deficient number, since it is larger than the sum of its proper divisors (1138376731).

123846965261381 is a wasteful number, since it uses less digits than its factorization.

123846965261381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138376730.

The product of its digits is 89579520, while the sum is 65.

The spelling of 123846965261381 in words is "one hundred twenty-three trillion, eight hundred forty-six billion, nine hundred sixty-five million, two hundred sixty-one thousand, three hundred eighty-one".