2123955970 has 8 divisors (see below), whose sum is σ = 3823120764. Its totient is φ = 849582384.

The previous prime is 2123955961. The next prime is 2123955997. The reversal of 2123955970 is 795593212.

It can be written as a sum of positive squares in 2 ways, for example, as 2088398601 + 35557369 = 45699^2 + 5963^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2123955970² = 9022377924997281800, which contains 22 as substring.

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, 106197789 + ... + 106197808.

Almost surely, 2^2123955970 is an apocalyptic number.

2123955970 is a deficient number, since it is larger than the sum of its proper divisors (1699164794).

2123955970 is a wasteful number, since it uses less digits than its factorization.

2123955970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212395604.

The product of its (nonzero) digits is 170100, while the sum is 43.

The square root of 2123955970 is about 46086.3967999235. The cubic root of 2123955970 is about 1285.4302122015.

The spelling of 2123955970 in words is "two billion, one hundred twenty-three million, nine hundred fifty-five thousand, nine hundred seventy".