140223421023420 has 96 divisors (see below), whose sum is σ = 448897429209600. Its totient is φ = 32038033238784.

The previous prime is 140223421023409. The next prime is 140223421023421. The reversal of 140223421023420 is 24320124322041.

It is a super-2 number, since 2×140223421023420² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140223421023421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66853615 + ... + 68919174.

It is an arithmetic number, because the mean of its divisors is an integer number (4676014887600).

Almost surely, 2^{140223421023420} is an apocalyptic number.

140223421023420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140223421023420 is an abundant number, since it is smaller than the sum of its proper divisors (308674008186180).

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

140223421023420 is a wasteful number, since it uses less digits than its factorization.

140223421023420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135775267 (or 135775265 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 140223421023420 its reverse (24320124322041), we get a palindrome (164543545345461).

The spelling of 140223421023420 in words is "one hundred forty trillion, two hundred twenty-three billion, four hundred twenty-one million, twenty-three thousand, four hundred twenty".