1031020213323 has 16 divisors (see below), whose sum is σ = 1394354908800. Its totient is φ = 677553053184.

The previous prime is 1031020213319. The next prime is 1031020213337. The reversal of 1031020213323 is 3233120201301.

It is not a de Polignac number, because 1031020213323 - 2² = 1031020213319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1031020213323.

It is not an unprimeable number, because it can be changed into a prime (1031020213823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4499161 + ... + 4722762.

It is an arithmetic number, because the mean of its divisors is an integer number (87147181800).

Almost surely, 2^{1031020213323} is an apocalyptic number.

1031020213323 is a deficient number, since it is larger than the sum of its proper divisors (363334695477).

1031020213323 is an equidigital number, since it uses as much as digits as its factorization.

1031020213323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9222458.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1031020213323 its reverse (3233120201301), we get a palindrome (4264140414624).

The spelling of 1031020213323 in words is "one trillion, thirty-one billion, twenty million, two hundred thirteen thousand, three hundred twenty-three".