1021431124 has 12 divisors (see below), whose sum is σ = 2042862304. Its totient is φ = 437756184.

The previous prime is 1021431113. The next prime is 1021431133. The reversal of 1021431124 is 4211341201.

1021431124 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18239814 + ... + 18239869.

Almost surely, 2^1021431124 is an apocalyptic number.

1021431124 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1021431124 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1021431124 is a wasteful number, since it uses less digits than its factorization.

1021431124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36479694 (or 36479692 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1021431124 is about 31959.8361072143. The cubic root of 1021431124 is about 1007.0932744920.

Adding to 1021431124 its reverse (4211341201), we get a palindrome (5232772325).

The spelling of 1021431124 in words is "one billion, twenty-one million, four hundred thirty-one thousand, one hundred twenty-four".