30253143355240 has 32 divisors (see below), whose sum is σ = 73305693515880. Its totient is φ = 11170391392512.

The previous prime is 30253143355223. The next prime is 30253143355241. The reversal of 30253143355240 is 4255334135203.

It can be written as a sum of positive squares in 4 ways, for example, as 25663119910884 + 4590023444356 = 5065878^2 + 2142434^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 30253143355193 and 30253143355202.

It is not an unprimeable number, because it can be changed into a prime (30253143355241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29089560399 + ... + 29089561438.

Almost surely, 2^{30253143355240} is an apocalyptic number.

It is an amenable number.

30253143355240 is an abundant number, since it is smaller than the sum of its proper divisors (43052550160640).

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

30253143355240 is a wasteful number, since it uses less digits than its factorization.

30253143355240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58179121861 (or 58179121857 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 40.

The spelling of 30253143355240 in words is "thirty trillion, two hundred fifty-three billion, one hundred forty-three million, three hundred fifty-five thousand, two hundred forty".