20412123311402 has 16 divisors (see below), whose sum is σ = 30672226120032. Its totient is φ = 10188056918160.

The previous prime is 20412123311399. The next prime is 20412123311477. The reversal of 20412123311402 is 20411332121402.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2307128 + ... + 6793164.

It is an arithmetic number, because the mean of its divisors is an integer number (1917014132502).

Almost surely, 2^{20412123311402} is an apocalyptic number.

20412123311402 is a deficient number, since it is larger than the sum of its proper divisors (10260102808630).

20412123311402 is a wasteful number, since it uses less digits than its factorization.

20412123311402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4490053.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20412123311402 its reverse (20411332121402), we get a palindrome (40823455432804).

The spelling of 20412123311402 in words is "twenty trillion, four hundred twelve billion, one hundred twenty-three million, three hundred eleven thousand, four hundred two".