1001201001023 has 8 divisors (see below), whose sum is σ = 1016787425280. Its totient is φ = 985734935640.

The previous prime is 1001201001011. The next prime is 1001201001037. The reversal of 1001201001023 is 3201001021001.

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

It is a cyclic number.

It is not a de Polignac number, because 1001201001023 - 2¹² = 1001200996927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001201000995 and 1001201001013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001201001043) 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, 30072953 + ... + 30106226.

It is an arithmetic number, because the mean of its divisors is an integer number (127098428160).

Almost surely, 2^{1001201001023} is an apocalyptic number.

1001201001023 is a deficient number, since it is larger than the sum of its proper divisors (15586424257).

1001201001023 is a wasteful number, since it uses less digits than its factorization.

1001201001023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60179437.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1001201001023 its reverse (3201001021001), we get a palindrome (4202202022024).

The spelling of 1001201001023 in words is "one trillion, one billion, two hundred one million, one thousand, twenty-three".