1242703929793 has 2 divisors, whose sum is σ = 1242703929794. Its totient is φ = 1242703929792.

The previous prime is 1242703929787. The next prime is 1242703929809. The reversal of 1242703929793 is 3979293072421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1175515660944 + 67188268849 = 1084212^2 + 259207^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242703929793 - 2²⁵ = 1242670375361 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242703929293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621351964896 + 621351964897.

It is an arithmetic number, because the mean of its divisors is an integer number (621351964897).

Almost surely, 2^{1242703929793} is an apocalyptic number.

It is an amenable number.

1242703929793 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242703929793 is an equidigital number, since it uses as much as digits as its factorization.

1242703929793 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10287648, while the sum is 58.

The spelling of 1242703929793 in words is "one trillion, two hundred forty-two billion, seven hundred three million, nine hundred twenty-nine thousand, seven hundred ninety-three".