102440401143142 has 4 divisors (see below), whose sum is σ = 153660601714716. Its totient is φ = 51220200571570.

The previous prime is 102440401143139. The next prime is 102440401143161. The reversal of 102440401143142 is 241341104044201.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25610100285784 + ... + 25610100285787.

It is an arithmetic number, because the mean of its divisors is an integer number (38415150428679).

Almost surely, 2^{102440401143142} is an apocalyptic number.

102440401143142 is a deficient number, since it is larger than the sum of its proper divisors (51220200571574).

102440401143142 is an equidigital number, since it uses as much as digits as its factorization.

102440401143142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51220200571573.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 102440401143142 its reverse (241341104044201), we get a palindrome (343781505187343).

The spelling of 102440401143142 in words is "one hundred two trillion, four hundred forty billion, four hundred one million, one hundred forty-three thousand, one hundred forty-two".