30421542542 has 16 divisors (see below), whose sum is σ = 49583500800. Its totient is φ = 13945358520.

The previous prime is 30421542533. The next prime is 30421542581. The reversal of 30421542542 is 24524512403.

It is a junction number, because it is equal to n+sod(n) for n = 30421542499 and 30421542508.

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, 12911192 + ... + 12913547.

It is an arithmetic number, because the mean of its divisors is an integer number (3098968800).

Almost surely, 2^30421542542 is an apocalyptic number.

30421542542 is a deficient number, since it is larger than the sum of its proper divisors (19161958258).

30421542542 is a wasteful number, since it uses less digits than its factorization.

30421542542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25824791.

The product of its (nonzero) digits is 38400, while the sum is 32.

The spelling of 30421542542 in words is "thirty billion, four hundred twenty-one million, five hundred forty-two thousand, five hundred forty-two".