140421004432431 has 16 divisors (see below), whose sum is σ = 193269005168640. Its totient is φ = 90593546643360.

The previous prime is 140421004432349. The next prime is 140421004432487. The reversal of 140421004432431 is 134234400124041.

It is a happy number.

It is not a de Polignac number, because 140421004432431 - 2²¹ = 140421002335279 is a prime.

It is a super-2 number, since 2×140421004432431² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 140421004432392 and 140421004432401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140421004432231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7793946 + ... + 18482088.

It is an arithmetic number, because the mean of its divisors is an integer number (12079312823040).

Almost surely, 2^{140421004432431} is an apocalyptic number.

140421004432431 is a deficient number, since it is larger than the sum of its proper divisors (52848000736209).

140421004432431 is a wasteful number, since it uses less digits than its factorization.

140421004432431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10829446.

The product of its (nonzero) digits is 36864, while the sum is 33.

Adding to 140421004432431 its reverse (134234400124041), we get a palindrome (274655404556472).

The spelling of 140421004432431 in words is "one hundred forty trillion, four hundred twenty-one billion, four million, four hundred thirty-two thousand, four hundred thirty-one".