123015473002 has 4 divisors (see below), whose sum is σ = 184523209506. Its totient is φ = 61507736500.

The previous prime is 123015472991. The next prime is 123015473011. The reversal of 123015473002 is 200374510321.

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., 82300708161 + 40714764841 = 286881^2 + 201779^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30753868249 + ... + 30753868252.

Almost surely, 2^123015473002 is an apocalyptic number.

123015473002 is a deficient number, since it is larger than the sum of its proper divisors (61507736504).

123015473002 is an equidigital number, since it uses as much as digits as its factorization.

123015473002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61507736503.

The product of its (nonzero) digits is 5040, while the sum is 28.

Adding to 123015473002 its reverse (200374510321), we get a palindrome (323389983323).

The spelling of 123015473002 in words is "one hundred twenty-three billion, fifteen million, four hundred seventy-three thousand, two".