140240021411421 has 24 divisors (see below), whose sum is σ = 204120745281024. Its totient is φ = 92777158918080.

The previous prime is 140240021411401. The next prime is 140240021411431. The reversal of 140240021411421 is 124114120042041.

140240021411421 is a `hidden beast` number, since 1 + 4 + 0 + 2 + 400 + 214 + 1 + 1 + 42 + 1 = 666.

It is not a de Polignac number, because 140240021411421 - 2¹⁹ = 140240020887133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140240021411401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42708345 + ... + 45874641.

It is an arithmetic number, because the mean of its divisors is an integer number (8505031053376).

Almost surely, 2^{140240021411421} is an apocalyptic number.

It is an amenable number.

140240021411421 is a deficient number, since it is larger than the sum of its proper divisors (63880723869603).

140240021411421 is a wasteful number, since it uses less digits than its factorization.

140240021411421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3204001 (or 3203998 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 140240021411421 its reverse (124114120042041), we get a palindrome (264354141453462).

The spelling of 140240021411421 in words is "one hundred forty trillion, two hundred forty billion, twenty-one million, four hundred eleven thousand, four hundred twenty-one".