1231101233001 has 16 divisors (see below), whose sum is σ = 1839993981120. Its totient is φ = 813471019200.

The previous prime is 1231101232967. The next prime is 1231101233101. The reversal of 1231101233001 is 1003321011321.

1231101233001 is a `hidden beast` number, since 1 + 231 + 10 + 123 + 300 + 1 = 666.

It is not a de Polignac number, because 1231101233001 - 2¹³ = 1231101224809 is a prime.

It is a super-2 number, since 2×1231101233001² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1231101233101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201750675 + ... + 201756776.

It is an arithmetic number, because the mean of its divisors is an integer number (114999623820).

Almost surely, 2^{1231101233001} is an apocalyptic number.

It is an amenable number.

1231101233001 is a deficient number, since it is larger than the sum of its proper divisors (608892748119).

1231101233001 is a wasteful number, since it uses less digits than its factorization.

1231101233001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403507573 (or 403507567 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1231101233001 its reverse (1003321011321), we get a palindrome (2234422244322).

The spelling of 1231101233001 in words is "one trillion, two hundred thirty-one billion, one hundred one million, two hundred thirty-three thousand, one".