30553133142 has 64 divisors (see below), whose sum is σ = 74003742720. Its totient is φ = 8209299456.

The previous prime is 30553133113. The next prime is 30553133147. The reversal of 30553133142 is 24133135503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30553133147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 896478 + ... + 929934.

It is an arithmetic number, because the mean of its divisors is an integer number (1156308480).

Almost surely, 2^30553133142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30553133142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37001871360).

30553133142 is an abundant number, since it is smaller than the sum of its proper divisors (43450609578).

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

30553133142 is a wasteful number, since it uses less digits than its factorization.

30553133142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34765.

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 30553133142 its reverse (24133135503), we get a palindrome (54686268645).

The spelling of 30553133142 in words is "thirty billion, five hundred fifty-three million, one hundred thirty-three thousand, one hundred forty-two".