142412101257 has 4 divisors (see below), whose sum is σ = 189882801680. Its totient is φ = 94941400836.

The previous prime is 142412101243. The next prime is 142412101297. The reversal of 142412101257 is 752101214241.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 142412101257 - 2³¹ = 140264617609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142412101207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23735350207 + ... + 23735350212.

It is an arithmetic number, because the mean of its divisors is an integer number (47470700420).

Almost surely, 2^142412101257 is an apocalyptic number.

It is an amenable number.

142412101257 is a deficient number, since it is larger than the sum of its proper divisors (47470700423).

142412101257 is an equidigital number, since it uses as much as digits as its factorization.

142412101257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47470700422.

The product of its (nonzero) digits is 4480, while the sum is 30.

Adding to 142412101257 its reverse (752101214241), we get a palindrome (894513315498).

The spelling of 142412101257 in words is "one hundred forty-two billion, four hundred twelve million, one hundred one thousand, two hundred fifty-seven".