1031240326073 has 4 divisors (see below), whose sum is σ = 1031325585780. Its totient is φ = 1031155066368.

The previous prime is 1031240326007. The next prime is 1031240326121. The reversal of 1031240326073 is 3706230421301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 87987577129 + 943252748944 = 296627^2 + 971212^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031240326073 - 2¹² = 1031240321977 is a prime.

It is a super-2 number, since 2×1031240326073² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031240323073) 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, 42611708 + ... + 42635901.

It is an arithmetic number, because the mean of its divisors is an integer number (257831396445).

Almost surely, 2^{1031240326073} is an apocalyptic number.

It is an amenable number.

1031240326073 is a deficient number, since it is larger than the sum of its proper divisors (85259707).

1031240326073 is an equidigital number, since it uses as much as digits as its factorization.

1031240326073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85259706.

The product of its (nonzero) digits is 18144, while the sum is 32.

Adding to 1031240326073 its reverse (3706230421301), we get a palindrome (4737470747374).

The spelling of 1031240326073 in words is "one trillion, thirty-one billion, two hundred forty million, three hundred twenty-six thousand, seventy-three".