20153030124 has 24 divisors (see below), whose sum is σ = 49498671040. Its totient is φ = 6364114704.

The previous prime is 20153030119. The next prime is 20153030129. The reversal of 20153030124 is 42103035102.

It is an interprime number because it is at equal distance from previous prime (20153030119) and next prime (20153030129).

It is a super-2 number, since 2×20153030124² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20153030124.

It is not an unprimeable number, because it can be changed into a prime (20153030129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44195014 + ... + 44195469.

Almost surely, 2^20153030124 is an apocalyptic number.

It is an amenable number.

20153030124 is an abundant number, since it is smaller than the sum of its proper divisors (29345640916).

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

20153030124 is a wasteful number, since it uses less digits than its factorization.

20153030124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88390509 (or 88390507 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20153030124 its reverse (42103035102), we get a palindrome (62256065226).

The spelling of 20153030124 in words is "twenty billion, one hundred fifty-three million, thirty thousand, one hundred twenty-four".