123294067381 has 4 divisors (see below), whose sum is σ = 124181075200. Its totient is φ = 122407059564.

The previous prime is 123294067343. The next prime is 123294067409. The reversal of 123294067381 is 183760492321.

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-123294067381 is a prime.

It is a super-2 number, since 2×123294067381² (a number of 23 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 (123294064381) 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, 443503701 + ... + 443503978.

It is an arithmetic number, because the mean of its divisors is an integer number (31045268800).

Almost surely, 2^123294067381 is an apocalyptic number.

It is an amenable number.

123294067381 is a deficient number, since it is larger than the sum of its proper divisors (887007819).

123294067381 is an equidigital number, since it uses as much as digits as its factorization.

123294067381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 887007818.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 123294067381 in words is "one hundred twenty-three billion, two hundred ninety-four million, sixty-seven thousand, three hundred eighty-one".