30240621355 has 16 divisors (see below), whose sum is σ = 41721200640. Its totient is φ = 20612251872.

The previous prime is 30240621349. The next prime is 30240621361. The reversal of 30240621355 is 55312604203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (30240621349) and next prime (30240621361).

It is a cyclic number.

It is not a de Polignac number, because 30240621355 - 2³ = 30240621347 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2581035 + ... + 2592724.

It is an arithmetic number, because the mean of its divisors is an integer number (2607575040).

Almost surely, 2^30240621355 is an apocalyptic number.

30240621355 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

30240621355 is a deficient number, since it is larger than the sum of its proper divisors (11480579285).

30240621355 is a wasteful number, since it uses less digits than its factorization.

30240621355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5173938.

The product of its (nonzero) digits is 21600, while the sum is 31.

It can be divided in two parts, 302406 and 21355, that added together give a square (323761 = 569²).

The spelling of 30240621355 in words is "thirty billion, two hundred forty million, six hundred twenty-one thousand, three hundred fifty-five".