1201033031021 has 4 divisors (see below), whose sum is σ = 1201035227712. Its totient is φ = 1201030834332.

The previous prime is 1201033030963. The next prime is 1201033031053. The reversal of 1201033031021 is 1201303301021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1201033031021 - 2¹⁰ = 1201033029997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201033031071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 439676 + ... + 1611018.

It is an arithmetic number, because the mean of its divisors is an integer number (300258806928).

Almost surely, 2^{1201033031021} is an apocalyptic number.

It is an amenable number.

1201033031021 is a deficient number, since it is larger than the sum of its proper divisors (2196691).

1201033031021 is a wasteful number, since it uses less digits than its factorization.

1201033031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196690.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1201033031021 its reverse (1201303301021), we get a palindrome (2402336332042).

The spelling of 1201033031021 in words is "one trillion, two hundred one billion, thirty-three million, thirty-one thousand, twenty-one".