2115430020 has 240 divisors, whose sum is σ = 7666420608. Its totient is φ = 482595840.

The previous prime is 2115430001. The next prime is 2115430039. The reversal of 2115430020 is 200345112.

2115430020 is a `hidden beast` number, since 211 + 5 + 430 + 0 + 20 = 666.

It is an interprime number because it is at equal distance from previous prime (2115430001) and next prime (2115430039).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2115429975 and 2115430002.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 299449 + ... + 306431.

Almost surely, 2^2115430020 is an apocalyptic number.

2115430020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2115430020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3833210304).

2115430020 is an abundant number, since it is smaller than the sum of its proper divisors (5550990588).

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

2115430020 is a wasteful number, since it uses less digits than its factorization.

2115430020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7032 (or 7021 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 2115430020 is about 45993.8041479502. The cubic root of 2115430020 is about 1283.7079211614.

Adding to 2115430020 its reverse (200345112), we get a palindrome (2315775132).

The spelling of 2115430020 in words is "two billion, one hundred fifteen million, four hundred thirty thousand, twenty".