1150012020 has 96 divisors (see below), whose sum is σ = 3292410240. Its totient is φ = 299819520.

The previous prime is 1150012009. The next prime is 1150012033. The reversal of 1150012020 is 202100511.

It is a super-2 number, since 2×1150012020² = 2645055292288960800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1150011987 and 1150012005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1338351 + ... + 1339209.

It is an arithmetic number, because the mean of its divisors is an integer number (34295940).

Almost surely, 2^1150012020 is an apocalyptic number.

1150012020 is a gapful number since it is divisible by the number (10) 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 1150012020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1646205120).

1150012020 is an abundant number, since it is smaller than the sum of its proper divisors (2142398220).

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

1150012020 is a wasteful number, since it uses less digits than its factorization.

1150012020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1343 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1150012020 is about 33911.8271403945. The cubic root of 1150012020 is about 1047.6932033701.

Adding to 1150012020 its reverse (202100511), we get a palindrome (1352112531).

The spelling of 1150012020 in words is "one billion, one hundred fifty million, twelve thousand, twenty".