1031013440233 has 12 divisors (see below), whose sum is σ = 1202739755220. Its totient is φ = 881222318592.

The previous prime is 1031013440221. The next prime is 1031013440279. The reversal of 1031013440233 is 3320443101301.

It can be written as a sum of positive squares in 2 ways, for example, as 813122403289 + 217891036944 = 901733^2 + 466788^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1031013440233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1031013440198 and 1031013440207.

It is not an unprimeable number, because it can be changed into a prime (1031013446233) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 29785948 + ... + 29820541.

It is an arithmetic number, because the mean of its divisors is an integer number (100228312935).

Almost surely, 2^{1031013440233} is an apocalyptic number.

It is an amenable number.

1031013440233 is a deficient number, since it is larger than the sum of its proper divisors (171726314987).

1031013440233 is an equidigital number, since it uses as much as digits as its factorization.

1031013440233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59606856 (or 59606849 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 1031013440233 its reverse (3320443101301), we get a palindrome (4351456541534).

The spelling of 1031013440233 in words is "one trillion, thirty-one billion, thirteen million, four hundred forty thousand, two hundred thirty-three".