30231053442 has 20 divisors (see below), whose sum is σ = 67739953446. Its totient is φ = 10077017760.

The previous prime is 30231053423. The next prime is 30231053443. The reversal of 30231053442 is 24435013203.

30231053442 is a `hidden beast` number, since 3 + 0 + 2 + 310 + 5 + 344 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 22210238961 + 8020814481 = 149031^2 + 89559^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (30231053443) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 93305559 + ... + 93305882.

Almost surely, 2^30231053442 is an apocalyptic number.

30231053442 is an abundant number, since it is smaller than the sum of its proper divisors (37508900004).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30231053442 is a wasteful number, since it uses less digits than its factorization.

30231053442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186611455 (or 186611446 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 30231053442 its reverse (24435013203), we get a palindrome (54666066645).

The spelling of 30231053442 in words is "thirty billion, two hundred thirty-one million, fifty-three thousand, four hundred forty-two".