1242413101 has 2 divisors, whose sum is σ = 1242413102. Its totient is φ = 1242413100.

The previous prime is 1242413069. The next prime is 1242413111. The reversal of 1242413101 is 1013142421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 870309001 + 372104100 = 29501^2 + 19290^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242413101 - 2⁵ = 1242413069 is a prime.

It is a super-3 number, since 3×1242413101³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242413111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621206550 + 621206551.

It is an arithmetic number, because the mean of its divisors is an integer number (621206551).

Almost surely, 2^1242413101 is an apocalyptic number.

It is an amenable number.

1242413101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242413101 is an equidigital number, since it uses as much as digits as its factorization.

1242413101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1242413101 is about 35247.8808015461. The cubic root of 1242413101 is about 1075.0335236706.

Adding to 1242413101 its reverse (1013142421), we get a palindrome (2255555522).

The spelling of 1242413101 in words is "one billion, two hundred forty-two million, four hundred thirteen thousand, one hundred one".