30523002520042 has 4 divisors (see below), whose sum is σ = 45784503780066. Its totient is φ = 15261501260020.

The previous prime is 30523002520009. The next prime is 30523002520097. The reversal of 30523002520042 is 24002520032503.

It is a happy number.

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., 20732167521081 + 9790834998961 = 4553259^2 + 3129031^2 .

It is a super-2 number, since 2×30523002520042² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7630750630009 + ... + 7630750630012.

Almost surely, 2^{30523002520042} is an apocalyptic number.

30523002520042 is a deficient number, since it is larger than the sum of its proper divisors (15261501260024).

30523002520042 is a wasteful number, since it uses less digits than its factorization.

30523002520042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15261501260023.

The product of its (nonzero) digits is 14400, while the sum is 28.

Adding to 30523002520042 its reverse (24002520032503), we get a palindrome (54525522552545).

The spelling of 30523002520042 in words is "thirty trillion, five hundred twenty-three billion, two million, five hundred twenty thousand, forty-two".