531010030120042 has 16 divisors (see below), whose sum is σ = 869041717222752. Its totient is φ = 241335914011920.

The previous prime is 531010030120021. The next prime is 531010030120051. The reversal of 531010030120042 is 240021030010135.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 531010030119995 and 531010030120022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1613906628 + ... + 1614235615.

It is an arithmetic number, because the mean of its divisors is an integer number (54315107326422).

Almost surely, 2^{531010030120042} is an apocalyptic number.

531010030120042 is a deficient number, since it is larger than the sum of its proper divisors (338031687102710).

531010030120042 is a wasteful number, since it uses less digits than its factorization.

531010030120042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3228149733.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 531010030120042 its reverse (240021030010135), we get a palindrome (771031060130177).

The spelling of 531010030120042 in words is "five hundred thirty-one trillion, ten billion, thirty million, one hundred twenty thousand, forty-two".