1020032532531 has 12 divisors (see below), whose sum is σ = 1473399960552. Its totient is φ = 680012625696.

The previous prime is 1020032532461. The next prime is 1020032532539. The reversal of 1020032532531 is 1352352300201.

It is a happy number.

1020032532531 is a `hidden beast` number, since 10 + 2 + 0 + 0 + 325 + 325 + 3 + 1 = 666.

It is not a de Polignac number, because 1020032532531 - 2⁷ = 1020032532403 is a prime.

It is a super-2 number, since 2×1020032532531² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1020032532495 and 1020032532504.

It is not an unprimeable number, because it can be changed into a prime (1020032532539) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2946 + ... + 1428311.

It is an arithmetic number, because the mean of its divisors is an integer number (122783330046).

Almost surely, 2^{1020032532531} is an apocalyptic number.

1020032532531 is a deficient number, since it is larger than the sum of its proper divisors (453367428021).

1020032532531 is a wasteful number, since it uses less digits than its factorization.

1020032532531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510450 (or 1510447 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 1020032532531 its reverse (1352352300201), we get a palindrome (2372384832732).

The spelling of 1020032532531 in words is "one trillion, twenty billion, thirty-two million, five hundred thirty-two thousand, five hundred thirty-one".