431401120102 has 4 divisors (see below), whose sum is σ = 647101680156. Its totient is φ = 215700560050.

The previous prime is 431401120061. The next prime is 431401120103. The reversal of 431401120102 is 201021104134.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×431401120102² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 431401120102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431401120103) 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, 107850280024 + ... + 107850280027.

It is an arithmetic number, because the mean of its divisors is an integer number (161775420039).

Almost surely, 2^431401120102 is an apocalyptic number.

431401120102 is a deficient number, since it is larger than the sum of its proper divisors (215700560054).

431401120102 is a wasteful number, since it uses less digits than its factorization.

431401120102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215700560053.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 431401120102 its reverse (201021104134), we get a palindrome (632422224236).

The spelling of 431401120102 in words is "four hundred thirty-one billion, four hundred one million, one hundred twenty thousand, one hundred two".