1020234412555 has 16 divisors (see below), whose sum is σ = 1234520676000. Its totient is φ = 809373866752.

The previous prime is 1020234412523. The next prime is 1020234412657. The reversal of 1020234412555 is 5552144320201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1020234412555 - 2⁵ = 1020234412523 is a prime.

It is a super-2 number, since 2×1020234412555² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020234412555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137680 + ... + 1435069.

It is an arithmetic number, because the mean of its divisors is an integer number (77157542250).

Almost surely, 2^{1020234412555} is an apocalyptic number.

1020234412555 is a deficient number, since it is larger than the sum of its proper divisors (214286263445).

1020234412555 is a wasteful number, since it uses less digits than its factorization.

1020234412555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1573838.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 1020234412555 its reverse (5552144320201), we get a palindrome (6572378732756).

The spelling of 1020234412555 in words is "one trillion, twenty billion, two hundred thirty-four million, four hundred twelve thousand, five hundred fifty-five".