123103020002 has 4 divisors (see below), whose sum is σ = 184654530006. Its totient is φ = 61551510000.

The previous prime is 123103019999. The next prime is 123103020043. The reversal of 123103020002 is 200020301321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 200020301321 = 571 ⋅350298251.

It can be written as a sum of positive squares in only one way, i.e., 120699961561 + 2403058441 = 347419^2 + 49021^2 .

It is a super-2 number, since 2×123103020002² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30775754999 + ... + 30775755002.

Almost surely, 2^123103020002 is an apocalyptic number.

123103020002 is a deficient number, since it is larger than the sum of its proper divisors (61551510004).

123103020002 is an equidigital number, since it uses as much as digits as its factorization.

123103020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61551510003.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 123103020002 its reverse (200020301321), we get a palindrome (323123321323).

The spelling of 123103020002 in words is "one hundred twenty-three billion, one hundred three million, twenty thousand, two".