1401432140421 has 48 divisors (see below), whose sum is σ = 2092194074880. Its totient is φ = 903464190720.

The previous prime is 1401432140333. The next prime is 1401432140483. The reversal of 1401432140421 is 1240412341041.

1401432140421 is a `hidden beast` number, since 1 + 40 + 143 + 21 + 40 + 421 = 666.

It is not a de Polignac number, because 1401432140421 - 2¹⁵ = 1401432107653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1401432140221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 183453720 + ... + 183461358.

It is an arithmetic number, because the mean of its divisors is an integer number (43587376560).

Almost surely, 2^{1401432140421} is an apocalyptic number.

It is an amenable number.

1401432140421 is a deficient number, since it is larger than the sum of its proper divisors (690761934459).

1401432140421 is a wasteful number, since it uses less digits than its factorization.

1401432140421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13186 (or 13183 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1401432140421 its reverse (1240412341041), we get a palindrome (2641844481462).

The spelling of 1401432140421 in words is "one trillion, four hundred one billion, four hundred thirty-two million, one hundred forty thousand, four hundred twenty-one".