30421421240 has 64 divisors (see below), whose sum is σ = 79702522560. Its totient is φ = 10233400320.

The previous prime is 30421421237. The next prime is 30421421243. The reversal of 30421421240 is 4212412403.

It is an interprime number because it is at equal distance from previous prime (30421421237) and next prime (30421421243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30421421243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1010141 + ... + 1039820.

It is an arithmetic number, because the mean of its divisors is an integer number (1245351915).

Almost surely, 2^30421421240 is an apocalyptic number.

It is an amenable number.

30421421240 is an abundant number, since it is smaller than the sum of its proper divisors (49281101320).

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

30421421240 is a wasteful number, since it uses less digits than its factorization.

30421421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050032 (or 2050028 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 30421421240 its reverse (4212412403), we get a palindrome (34633833643).

The spelling of 30421421240 in words is "thirty billion, four hundred twenty-one million, four hundred twenty-one thousand, two hundred forty".