20412311321402 has 128 divisors (see below), whose sum is σ = 42113663907840. Its totient is φ = 7163933103360.

The previous prime is 20412311321351. The next prime is 20412311321491.

It is a happy number.

20412311321402 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13641224 + ... + 15063452.

It is an arithmetic number, because the mean of its divisors is an integer number (329012999280).

Almost surely, 2^{20412311321402} is an apocalyptic number.

20412311321402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20412311321402 is an abundant number, since it is smaller than the sum of its proper divisors (21701352586438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20412311321402 is a wasteful number, since it uses less digits than its factorization.

20412311321402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1422436.

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

It can be divided in two parts, 2041231 and 1321402, that added together give a palindrome (3362633).

The spelling of 20412311321402 in words is "twenty trillion, four hundred twelve billion, three hundred eleven million, three hundred twenty-one thousand, four hundred two".