310421123 has 2 divisors, whose sum is σ = 310421124. Its totient is φ = 310421122.

The previous prime is 310421101. The next prime is 310421143. The reversal of 310421123 is 321124013.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-310421123 is a prime.

It is a super-2 number, since 2×310421123² = 192722547209162258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (310421143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155210561 + 155210562.

It is an arithmetic number, because the mean of its divisors is an integer number (155210562).

Almost surely, 2^310421123 is an apocalyptic number.

310421123 is a deficient number, since it is larger than the sum of its proper divisors (1).

310421123 is an equidigital number, since it uses as much as digits as its factorization.

310421123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 310421123 is about 17618.7718925015. The cubic root of 310421123 is about 677.0962708561.

Adding to 310421123 its reverse (321124013), we get a palindrome (631545136).

The spelling of 310421123 in words is "three hundred ten million, four hundred twenty-one thousand, one hundred twenty-three".