1000123301731 has 2 divisors, whose sum is σ = 1000123301732. Its totient is φ = 1000123301730.

The previous prime is 1000123301729. The next prime is 1000123301797. The reversal of 1000123301731 is 1371033210001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1000123301731 - 2¹ = 1000123301729 is a prime.

It is a super-2 number, since 2×1000123301731² (a number of 25 digits) contains 22 as substring.

Together with 1000123301729, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1000123307731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500061650865 + 500061650866.

It is an arithmetic number, because the mean of its divisors is an integer number (500061650866).

Almost surely, 2^{1000123301731} is an apocalyptic number.

1000123301731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000123301731 is an equidigital number, since it uses as much as digits as its factorization.

1000123301731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

Adding to 1000123301731 its reverse (1371033210001), we get a palindrome (2371156511732).

The spelling of 1000123301731 in words is "one trillion, one hundred twenty-three million, three hundred one thousand, seven hundred thirty-one".