1031140543123 has 4 divisors (see below), whose sum is σ = 1031579142048. Its totient is φ = 1030701944200.

The previous prime is 1031140543067. The next prime is 1031140543127. The reversal of 1031140543123 is 3213450411301.

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 1031140543123 - 2¹⁷ = 1031140412051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031140543091 and 1031140543100.

It is not an unprimeable number, because it can be changed into a prime (1031140543127) 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, 219295936 + ... + 219300637.

It is an arithmetic number, because the mean of its divisors is an integer number (257894785512).

Almost surely, 2^{1031140543123} is an apocalyptic number.

1031140543123 is a deficient number, since it is larger than the sum of its proper divisors (438598925).

1031140543123 is an equidigital number, since it uses as much as digits as its factorization.

1031140543123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438598924.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1031140543123 its reverse (3213450411301), we get a palindrome (4244590954424).

The spelling of 1031140543123 in words is "one trillion, thirty-one billion, one hundred forty million, five hundred forty-three thousand, one hundred twenty-three".