20102111258 has 8 divisors (see below), whose sum is σ = 30157645728. Its totient is φ = 10049562684.

The previous prime is 20102111257. The next prime is 20102111311. The reversal of 20102111258 is 85211120102.

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

It is not an unprimeable number, because it can be changed into a prime (20102111257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 729566 + ... + 756617.

It is an arithmetic number, because the mean of its divisors is an integer number (3769705716).

Almost surely, 2^20102111258 is an apocalyptic number.

20102111258 is a deficient number, since it is larger than the sum of its proper divisors (10055534470).

20102111258 is a wasteful number, since it uses less digits than its factorization.

20102111258 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492948.

The product of its (nonzero) digits is 320, while the sum is 23.

The spelling of 20102111258 in words is "twenty billion, one hundred two million, one hundred eleven thousand, two hundred fifty-eight".