101123021002 has 4 divisors (see below), whose sum is σ = 151684531506. Its totient is φ = 50561510500.

The previous prime is 101123020963. The next prime is 101123021003. The reversal of 101123021002 is 200120321101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 98457260841 + 2665760161 = 313779^2 + 51631^2 .

It is not an unprimeable number, because it can be changed into a prime (101123021003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25280755249 + ... + 25280755252.

Almost surely, 2^101123021002 is an apocalyptic number.

101123021002 is a deficient number, since it is larger than the sum of its proper divisors (50561510504).

101123021002 is an equidigital number, since it uses as much as digits as its factorization.

101123021002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50561510503.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 101123021002 its reverse (200120321101), we get a palindrome (301243342103).

The spelling of 101123021002 in words is "one hundred one billion, one hundred twenty-three million, twenty-one thousand, two".