30031311144440 has 32 divisors (see below), whose sum is σ = 67814386742880. Its totient is φ = 11969157939072.

The previous prime is 30031311144437. The next prime is 30031311144487. The reversal of 30031311144440 is 4444111313003.

It is a super-2 number, since 2×30031311144440² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

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, 1355192492 + ... + 1355214651.

It is an arithmetic number, because the mean of its divisors is an integer number (2119199585715).

Almost surely, 2^{30031311144440} is an apocalyptic number.

It is an amenable number.

30031311144440 is an abundant number, since it is smaller than the sum of its proper divisors (37783075598440).

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

30031311144440 is a wasteful number, since it uses less digits than its factorization.

30031311144440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2710407431 (or 2710407427 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 30031311144440 its reverse (4444111313003), we get a palindrome (34475422457443).

The spelling of 30031311144440 in words is "thirty trillion, thirty-one billion, three hundred eleven million, one hundred forty-four thousand, four hundred forty".