1242503513167 has 16 divisors (see below), whose sum is σ = 1535523747840. Its totient is φ = 981029052288.

The previous prime is 1242503513131. The next prime is 1242503513281. The reversal of 1242503513167 is 7613153052421.

It is a cyclic number.

It is not a de Polignac number, because 1242503513167 - 2⁷ = 1242503513039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242503513567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111071067 + ... + 111082252.

It is an arithmetic number, because the mean of its divisors is an integer number (95970234240).

Almost surely, 2^{1242503513167} is an apocalyptic number.

1242503513167 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1242503513167 is a deficient number, since it is larger than the sum of its proper divisors (293020234673).

1242503513167 is a wasteful number, since it uses less digits than its factorization.

1242503513167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222153390.

The product of its (nonzero) digits is 151200, while the sum is 40.

Adding to 1242503513167 its reverse (7613153052421), we get a palindrome (8855656565588).

The spelling of 1242503513167 in words is "one trillion, two hundred forty-two billion, five hundred three million, five hundred thirteen thousand, one hundred sixty-seven".