1001312102123 has 8 divisors (see below), whose sum is σ = 1009509405696. Its totient is φ = 993123188200.

The previous prime is 1001312102081. The next prime is 1001312102171. The reversal of 1001312102123 is 3212012131001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1001312102123 is a prime.

It is a super-2 number, since 2×1001312102123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001312602123) 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, 1857623 + ... + 2335248.

It is an arithmetic number, because the mean of its divisors is an integer number (126188675712).

Almost surely, 2^{1001312102123} is an apocalyptic number.

1001312102123 is a deficient number, since it is larger than the sum of its proper divisors (8197303573).

1001312102123 is a wasteful number, since it uses less digits than its factorization.

1001312102123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194825.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1001312102123 its reverse (3212012131001), we get a palindrome (4213324233124).

The spelling of 1001312102123 in words is "one trillion, one billion, three hundred twelve million, one hundred two thousand, one hundred twenty-three".