102453254031442 has 4 divisors (see below), whose sum is σ = 153679881047166. Its totient is φ = 51226627015720.

The previous prime is 102453254031437. The next prime is 102453254031451. The reversal of 102453254031442 is 244130452354201.

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

It can be written as a sum of positive squares in only one way, i.e., 101914496563441 + 538757468001 = 10095271^2 + 734001^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102453254031395 and 102453254031404.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25613313507859 + ... + 25613313507862.

Almost surely, 2^{102453254031442} is an apocalyptic number.

102453254031442 is a deficient number, since it is larger than the sum of its proper divisors (51226627015724).

102453254031442 is an equidigital number, since it uses as much as digits as its factorization.

102453254031442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51226627015723.

The product of its (nonzero) digits is 460800, while the sum is 40.

The spelling of 102453254031442 in words is "one hundred two trillion, four hundred fifty-three billion, two hundred fifty-four million, thirty-one thousand, four hundred forty-two".