1242023232313 has 16 divisors (see below), whose sum is σ = 1277531030160. Its totient is φ = 1207109274624.

The previous prime is 1242023232301. The next prime is 1242023232379. The reversal of 1242023232313 is 3132323202421.

It can be written as a sum of positive squares in 8 ways, for example, as 49465318464 + 1192557913849 = 222408^2 + 1092043^2 .

It is not a de Polignac number, because 1242023232313 - 2²⁵ = 1241989677881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1242023232113) 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, 1577395 + ... + 2229847.

It is an arithmetic number, because the mean of its divisors is an integer number (79845689385).

Almost surely, 2^{1242023232313} is an apocalyptic number.

It is an amenable number.

1242023232313 is a deficient number, since it is larger than the sum of its proper divisors (35507797847).

1242023232313 is an equidigital number, since it uses as much as digits as its factorization.

1242023232313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652908.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 1242023232313 its reverse (3132323202421), we get a palindrome (4374346434734).

It can be divided in two parts, 12420232 and 32313, that added together give a triangular number (12452545 = T₄₉₉₀).

The spelling of 1242023232313 in words is "one trillion, two hundred forty-two billion, twenty-three million, two hundred thirty-two thousand, three hundred thirteen".