1020123100532 has 24 divisors (see below), whose sum is σ = 1866142345536. Its totient is φ = 487018355648.

The previous prime is 1020123100487. The next prime is 1020123100541. The reversal of 1020123100532 is 2350013210201.

It is a super-2 number, since 2×1020123100532² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9795713 + ... + 9899304.

It is an arithmetic number, because the mean of its divisors is an integer number (77755931064).

Almost surely, 2^{1020123100532} is an apocalyptic number.

It is an amenable number.

1020123100532 is a deficient number, since it is larger than the sum of its proper divisors (846019245004).

1020123100532 is a wasteful number, since it uses less digits than its factorization.

1020123100532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19695607 (or 19695605 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 1020123100532 its reverse (2350013210201), we get a palindrome (3370136310733).

The spelling of 1020123100532 in words is "one trillion, twenty billion, one hundred twenty-three million, one hundred thousand, five hundred thirty-two".