20100123002 has 8 divisors (see below), whose sum is σ = 30157905312. Its totient is φ = 10047487900.

The previous prime is 20100122983. The next prime is 20100123007. The reversal of 20100123002 is 20032100102.

It is a happy number.

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 (20100123007) 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, 1277024 + ... + 1292667.

It is an arithmetic number, because the mean of its divisors is an integer number (3769738164).

Almost surely, 2^20100123002 is an apocalyptic number.

20100123002 is a deficient number, since it is larger than the sum of its proper divisors (10057782310).

20100123002 is a wasteful number, since it uses less digits than its factorization.

20100123002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573604.

The product of its (nonzero) digits is 24, while the sum is 11.

Adding to 20100123002 its reverse (20032100102), we get a palindrome (40132223104).

The spelling of 20100123002 in words is "twenty billion, one hundred million, one hundred twenty-three thousand, two".