2403117421 has 2 divisors, whose sum is σ = 2403117422. Its totient is φ = 2403117420.

The previous prime is 2403117419. The next prime is 2403117439. The reversal of 2403117421 is 1247113042.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2032747396 + 370370025 = 45086^2 + 19245^2 .

It is a cyclic number.

It is not a de Polignac number, because 2403117421 - 2¹ = 2403117419 is a prime.

It is a super-2 number, since 2×2403117421² = 11549946678227382482, which contains 22 as substring.

Together with 2403117419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2403117121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1201558710 + 1201558711.

It is an arithmetic number, because the mean of its divisors is an integer number (1201558711).

Almost surely, 2^2403117421 is an apocalyptic number.

It is an amenable number.

2403117421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2403117421 is an equidigital number, since it uses as much as digits as its factorization.

2403117421 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 2403117421 is about 49021.6015752240. The cubic root of 2403117421 is about 1339.4453450006.

The spelling of 2403117421 in words is "two billion, four hundred three million, one hundred seventeen thousand, four hundred twenty-one".