1023205642552 has 16 divisors (see below), whose sum is σ = 1920315403440. Its totient is φ = 511121534976.

The previous prime is 1023205642531. The next prime is 1023205642633. The reversal of 1023205642552 is 2552465023201.

It is a super-3 number, since 3×1023205642552³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60151753 + ... + 60168760.

It is an arithmetic number, because the mean of its divisors is an integer number (120019712715).

Almost surely, 2^{1023205642552} is an apocalyptic number.

It is an amenable number.

1023205642552 is a deficient number, since it is larger than the sum of its proper divisors (897109760888).

1023205642552 is a wasteful number, since it uses less digits than its factorization.

1023205642552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120321582 (or 120321578 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

The spelling of 1023205642552 in words is "one trillion, twenty-three billion, two hundred five million, six hundred forty-two thousand, five hundred fifty-two".