1000031213023 has 4 divisors (see below), whose sum is σ = 1000034829648. Its totient is φ = 1000027596400.

The previous prime is 1000031212967. The next prime is 1000031213029. The reversal of 1000031213023 is 3203121300001.

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 1000031213023 - 2⁹ = 1000031212511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000031212988 and 1000031213006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000031213029) 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, 1355803 + ... + 1959148.

It is an arithmetic number, because the mean of its divisors is an integer number (250008707412).

Almost surely, 2^{1000031213023} is an apocalyptic number.

1000031213023 is a deficient number, since it is larger than the sum of its proper divisors (3616625).

1000031213023 is an equidigital number, since it uses as much as digits as its factorization.

1000031213023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3616624.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1000031213023 its reverse (3203121300001), we get a palindrome (4203152513024).

The spelling of 1000031213023 in words is "one trillion, thirty-one million, two hundred thirteen thousand, twenty-three".