1031201213023 has 4 divisors (see below), whose sum is σ = 1031212361088. Its totient is φ = 1031190064960.

The previous prime is 1031201213017. The next prime is 1031201213039. The reversal of 1031201213023 is 3203121021301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1031201213023 - 2²¹ = 1031199115871 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 (1031201219023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5434111 + ... + 5620672.

It is an arithmetic number, because the mean of its divisors is an integer number (257803090272).

Almost surely, 2^{1031201213023} is an apocalyptic number.

1031201213023 is a deficient number, since it is larger than the sum of its proper divisors (11148065).

1031201213023 is an equidigital number, since it uses as much as digits as its factorization.

1031201213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11148064.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1031201213023 its reverse (3203121021301), we get a palindrome (4234322234324).

The spelling of 1031201213023 in words is "one trillion, thirty-one billion, two hundred one million, two hundred thirteen thousand, twenty-three".