1240101431 has 16 divisors (see below), whose sum is σ = 1328599584. Its totient is φ = 1153388544.

The previous prime is 1240101403. The next prime is 1240101487. The reversal of 1240101431 is 1341010421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1240101431 - 2¹⁸ = 1239839287 is a prime.

It is a super-2 number, since 2×1240101431² = 3075703118336495522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240101131) 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 in 15 ways as a sum of consecutive naturals, for example, 1223681 + ... + 1224693.

It is an arithmetic number, because the mean of its divisors is an integer number (83037474).

Almost surely, 2^1240101431 is an apocalyptic number.

1240101431 is a deficient number, since it is larger than the sum of its proper divisors (88498153).

1240101431 is a wasteful number, since it uses less digits than its factorization.

1240101431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1810.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1240101431 is about 35215.0739172872. The cubic root of 1240101431 is about 1074.3663634923.

Adding to 1240101431 its reverse (1341010421), we get a palindrome (2581111852).

The spelling of 1240101431 in words is "one billion, two hundred forty million, one hundred one thousand, four hundred thirty-one".