1021103432 has 8 divisors (see below), whose sum is σ = 1914568950. Its totient is φ = 510551712.

The previous prime is 1021103399. The next prime is 1021103437. The reversal of 1021103432 is 2343011201.

It can be written as a sum of positive squares in only one way, i.e., 1020546916 + 556516 = 31946^2 + 746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1021103432.

It is not an unprimeable number, because it can be changed into a prime (1021103437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63818957 + ... + 63818972.

Almost surely, 2^1021103432 is an apocalyptic number.

It is an amenable number.

1021103432 is a deficient number, since it is larger than the sum of its proper divisors (893465518).

1021103432 is a wasteful number, since it uses less digits than its factorization.

1021103432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127637935 (or 127637931 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1021103432 is about 31954.7090739378. The cubic root of 1021103432 is about 1006.9855655794.

Adding to 1021103432 its reverse (2343011201), we get a palindrome (3364114633).

The spelling of 1021103432 in words is "one billion, twenty-one million, one hundred three thousand, four hundred thirty-two".