2142403117 has 2 divisors, whose sum is σ = 2142403118. Its totient is φ = 2142403116.

The previous prime is 2142403097. The next prime is 2142403139. The reversal of 2142403117 is 7113042412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1231027396 + 911375721 = 35086^2 + 30189^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142403117 is a prime.

It is a super-2 number, since 2×2142403117² = 9179782231462631378, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2142403091 and 2142403100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2142403177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1071201558 + 1071201559.

It is an arithmetic number, because the mean of its divisors is an integer number (1071201559).

Almost surely, 2^2142403117 is an apocalyptic number.

It is an amenable number.

2142403117 is a deficient number, since it is larger than the sum of its proper divisors (1).

2142403117 is an equidigital number, since it uses as much as digits as its factorization.

2142403117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 2142403117 is about 46286.1006890838. The cubic root of 2142403117 is about 1289.1409293441.

Adding to 2142403117 its reverse (7113042412), we get a palindrome (9255445529).

The spelling of 2142403117 in words is "two billion, one hundred forty-two million, four hundred three thousand, one hundred seventeen".