1240100231 has 2 divisors, whose sum is σ = 1240100232. Its totient is φ = 1240100230.

The previous prime is 1240100179. The next prime is 1240100243. The reversal of 1240100231 is 1320010421.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1240100231 is a prime.

It is a super-2 number, since 2×1240100231² = 3075697165852506722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240100431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620050115 + 620050116.

It is an arithmetic number, because the mean of its divisors is an integer number (620050116).

Almost surely, 2^1240100231 is an apocalyptic number.

1240100231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240100231 is an equidigital number, since it uses as much as digits as its factorization.

1240100231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1240100231 is about 35215.0568791249. The cubic root of 1240100231 is about 1074.3660169507.

Adding to 1240100231 its reverse (1320010421), we get a palindrome (2560110652).

The spelling of 1240100231 in words is "one billion, two hundred forty million, one hundred thousand, two hundred thirty-one".