30551331040 has 192 divisors, whose sum is σ = 78385999104. Its totient is φ = 11208491008.

The previous prime is 30551331007. The next prime is 30551331047. The reversal of 30551331040 is 4013315503.

It is a junction number, because it is equal to n+sod(n) for n = 30551330996 and 30551331014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30551331047) 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, 45127182 + ... + 45127858.

It is an arithmetic number, because the mean of its divisors is an integer number (408260412).

Almost surely, 2^30551331040 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30551331040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39192999552).

30551331040 is an abundant number, since it is smaller than the sum of its proper divisors (47834668064).

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

30551331040 is a wasteful number, since it uses less digits than its factorization.

30551331040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 25.

Adding to 30551331040 its reverse (4013315503), we get a palindrome (34564646543).

The spelling of 30551331040 in words is "thirty billion, five hundred fifty-one million, three hundred thirty-one thousand, forty".