2123509036 has 12 divisors (see below), whose sum is σ = 4053971880. Its totient is φ = 965231360.

The previous prime is 2123509001. The next prime is 2123509043. The reversal of 2123509036 is 6309053212.

It is a junction number, because it is equal to n+sod(n) for n = 2123508989 and 2123509007.

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, 24130741 + ... + 24130828.

It is an arithmetic number, because the mean of its divisors is an integer number (337830990).

Almost surely, 2^2123509036 is an apocalyptic number.

It is an amenable number.

2123509036 is a deficient number, since it is larger than the sum of its proper divisors (1930462844).

2123509036 is a wasteful number, since it uses less digits than its factorization.

2123509036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48261584 (or 48261582 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 2123509036 is about 46081.5476736622. The cubic root of 2123509036 is about 1285.3400435452.

The spelling of 2123509036 in words is "two billion, one hundred twenty-three million, five hundred nine thousand, thirty-six".