1201211023023 has 64 divisors (see below), whose sum is σ = 1978901314560. Its totient is φ = 714031718400.

The previous prime is 1201211023013. The next prime is 1201211023063. The reversal of 1201211023023 is 3203201121021.

1201211023023 is a `hidden beast` number, since 1 + 201 + 211 + 0 + 230 + 23 = 666.

It is not a de Polignac number, because 1201211023023 - 2¹² = 1201211018927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1201211022987 and 1201211023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201211023013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3922215 + ... + 4217367.

It is an arithmetic number, because the mean of its divisors is an integer number (30920333040).

Almost surely, 2^{1201211023023} is an apocalyptic number.

1201211023023 is a deficient number, since it is larger than the sum of its proper divisors (777690291537).

1201211023023 is a wasteful number, since it uses less digits than its factorization.

1201211023023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295437 (or 295431 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1201211023023 its reverse (3203201121021), we get a palindrome (4404412144044).

The spelling of 1201211023023 in words is "one trillion, two hundred one billion, two hundred eleven million, twenty-three thousand, twenty-three".