1001023123012 has 18 divisors (see below), whose sum is σ = 1925521752014. Its totient is φ = 455010510240.

The previous prime is 1001023122943. The next prime is 1001023123021. The reversal of 1001023123012 is 2103213201001.

It can be written as a sum of positive squares in only one way, i.e., 785786510916 + 215236612096 = 886446^2 + 463936^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1034114313 + ... + 1034115280.

Almost surely, 2^{1001023123012} is an apocalyptic number.

It is an amenable number.

1001023123012 is a deficient number, since it is larger than the sum of its proper divisors (924498629002).

1001023123012 is a wasteful number, since it uses less digits than its factorization.

1001023123012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068229619 (or 2068229606 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1001023123012 its reverse (2103213201001), we get a palindrome (3104236324013).

The spelling of 1001023123012 in words is "one trillion, one billion, twenty-three million, one hundred twenty-three thousand, twelve".