140421120402 has 16 divisors (see below), whose sum is σ = 297362372832. Its totient is φ = 44053684800.

The previous prime is 140421120401. The next prime is 140421120403. The reversal of 140421120402 is 204021124041.

It is an interprime number because it is at equal distance from previous prime (140421120401) and next prime (140421120403).

It is not an unprimeable number, because it can be changed into a prime (140421120401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688338724 + ... + 688338927.

It is an arithmetic number, because the mean of its divisors is an integer number (18585148302).

Almost surely, 2^140421120402 is an apocalyptic number.

140421120402 is an abundant number, since it is smaller than the sum of its proper divisors (156941252430).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140421120402 is a wasteful number, since it uses less digits than its factorization.

140421120402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376677673.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 140421120402 its reverse (204021124041), we get a palindrome (344442244443).

The spelling of 140421120402 in words is "one hundred forty billion, four hundred twenty-one million, one hundred twenty thousand, four hundred two".