1021131533432 has 32 divisors (see below), whose sum is σ = 1927610082000. Its totient is φ = 507102672384.

The previous prime is 1021131533431. The next prime is 1021131533441. The reversal of 1021131533432 is 2343351311201.

1021131533432 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1021131533395 and 1021131533404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021131533431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25234688 + ... + 25275120.

Almost surely, 2^{1021131533432} is an apocalyptic number.

It is an amenable number.

1021131533432 is a deficient number, since it is larger than the sum of its proper divisors (906478548568).

1021131533432 is a wasteful number, since it uses less digits than its factorization.

1021131533432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61775 (or 61771 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 29.

Adding to 1021131533432 its reverse (2343351311201), we get a palindrome (3364482844633).

The spelling of 1021131533432 in words is "one trillion, twenty-one billion, one hundred thirty-one million, five hundred thirty-three thousand, four hundred thirty-two".