1023432100 has 18 divisors (see below), whose sum is σ = 2220847874. Its totient is φ = 409372800.

The previous prime is 1023432061. The next prime is 1023432107. The reversal of 1023432100 is 12343201.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 83028544 + 940403556 = 9112^2 + 30666^2 .

It is not an unprimeable number, because it can be changed into a prime (1023432107) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5117061 + ... + 5117260.

Almost surely, 2^1023432100 is an apocalyptic number.

1023432100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1023432100 is an abundant number, since it is smaller than the sum of its proper divisors (1197415774).

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

1023432100 is a wasteful number, since it uses less digits than its factorization.

1023432100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10234335 (or 10234328 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1023432100 is about 31991.1253318792. The cubic root of 1023432100 is about 1007.7504749481.

Adding to 1023432100 its reverse (12343201), we get a palindrome (1035775301).

The spelling of 1023432100 in words is "one billion, twenty-three million, four hundred thirty-two thousand, one hundred".