1012131432 has 48 divisors (see below), whose sum is σ = 2952052740. Its totient is φ = 311424768.

The previous prime is 1012131409. The next prime is 1012131443. The reversal of 1012131432 is 2341312101.

1012131432 is a `hidden beast` number, since 101 + 2 + 131 + 432 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1011621636 + 509796 = 31806^2 + 714^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 539733 + ... + 541604.

Almost surely, 2^1012131432 is an apocalyptic number.

1012131432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1012131432 is an abundant number, since it is smaller than the sum of its proper divisors (1939921308).

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

1012131432 is a wasteful number, since it uses less digits than its factorization.

1012131432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081362 (or 1081355 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1012131432 is about 31814.0131388670. The cubic root of 1012131432 is about 1004.0275675885.

Adding to 1012131432 its reverse (2341312101), we get a palindrome (3353443533).

The spelling of 1012131432 in words is "one billion, twelve million, one hundred thirty-one thousand, four hundred thirty-two".