140221312342 has 4 divisors (see below), whose sum is σ = 210331968516. Its totient is φ = 70110656170.

The previous prime is 140221312333. The next prime is 140221312351. The reversal of 140221312342 is 243213122041.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (140221312333) and next prime (140221312351).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35055328084 + ... + 35055328087.

It is an arithmetic number, because the mean of its divisors is an integer number (52582992129).

Almost surely, 2^140221312342 is an apocalyptic number.

140221312342 is a deficient number, since it is larger than the sum of its proper divisors (70110656174).

140221312342 is an equidigital number, since it uses as much as digits as its factorization.

140221312342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70110656173.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 140221312342 its reverse (243213122041), we get a palindrome (383434434383).

The spelling of 140221312342 in words is "one hundred forty billion, two hundred twenty-one million, three hundred twelve thousand, three hundred forty-two".