102401431 has 8 divisors (see below), whose sum is σ = 117590400. Its totient is φ = 88192440.

The previous prime is 102401419. The next prime is 102401443. The reversal of 102401431 is 134104201.

It is an interprime number because it is at equal distance from previous prime (102401419) and next prime (102401443).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102401431 - 2⁵ = 102401399 is a prime.

It is a super-2 number, since 2×102401431² = 20972106141695522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102401471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244771 + ... + 245188.

It is an arithmetic number, because the mean of its divisors is an integer number (14698800).

Almost surely, 2^102401431 is an apocalyptic number.

102401431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102401431 is a deficient number, since it is larger than the sum of its proper divisors (15188969).

102401431 is a wasteful number, since it uses less digits than its factorization.

102401431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489989.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 102401431 is about 10119.3592188438. The cubic root of 102401431 is about 467.8450174109.

Adding to 102401431 its reverse (134104201), we get a palindrome (236505632).

The spelling of 102401431 in words is "one hundred two million, four hundred one thousand, four hundred thirty-one".