42540251031301 has 4 divisors (see below), whose sum is σ = 42677036404704. Its totient is φ = 42403465657900.

The previous prime is 42540251031287. The next prime is 42540251031319. The reversal of 42540251031301 is 10313015204524.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42540251031301 is a prime.

It is a super-2 number, since 2×42540251031301² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42540251035301) 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, 68392686235 + ... + 68392686856.

It is an arithmetic number, because the mean of its divisors is an integer number (10669259101176).

Almost surely, 2^{42540251031301} is an apocalyptic number.

It is an amenable number.

42540251031301 is a deficient number, since it is larger than the sum of its proper divisors (136785373403).

42540251031301 is a wasteful number, since it uses less digits than its factorization.

42540251031301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136785373402.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 42540251031301 its reverse (10313015204524), we get a palindrome (52853266235825).

The spelling of 42540251031301 in words is "forty-two trillion, five hundred forty billion, two hundred fifty-one million, thirty-one thousand, three hundred one".