1201031023 has 4 divisors (see below), whose sum is σ = 1212255720. Its totient is φ = 1189806328.

The previous prime is 1201030981. The next prime is 1201031053. The reversal of 1201031023 is 3201301021.

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 1201031023 - 2¹³ = 1201022831 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1201030994 and 1201031012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201031053) 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, 5612188 + ... + 5612401.

It is an arithmetic number, because the mean of its divisors is an integer number (303063930).

Almost surely, 2^1201031023 is an apocalyptic number.

1201031023 is a deficient number, since it is larger than the sum of its proper divisors (11224697).

1201031023 is a wasteful number, since it uses less digits than its factorization.

1201031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11224696.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1201031023 is about 34655.8944914137. The cubic root of 1201031023 is about 1062.9628224586.

Adding to 1201031023 its reverse (3201301021), we get a palindrome (4402332044).

The spelling of 1201031023 in words is "one billion, two hundred one million, thirty-one thousand, twenty-three".