10920920820 has 24 divisors (see below), whose sum is σ = 30578578464. Its totient is φ = 2912245536.

The previous prime is 10920920809. The next prime is 10920920831. The reversal of 10920920820 is 2802902901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10920920809) and next prime (10920920831).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91007614 + ... + 91007733.

It is an arithmetic number, because the mean of its divisors is an integer number (1274107436).

Almost surely, 2^10920920820 is an apocalyptic number.

10920920820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10920920820 is an abundant number, since it is smaller than the sum of its proper divisors (19657657644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10920920820 is a wasteful number, since it uses less digits than its factorization.

10920920820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182015359 (or 182015357 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 10920920820 in words is "ten billion, nine hundred twenty million, nine hundred twenty thousand, eight hundred twenty".