20432100123402 has 64 divisors (see below), whose sum is σ = 44776182858624. Its totient is φ = 6164219139840.

The previous prime is 20432100123373. The next prime is 20432100123419.

It is a happy number.

20432100123402 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18750108 + ... + 19809864.

It is an arithmetic number, because the mean of its divisors is an integer number (699627857166).

Almost surely, 2^{20432100123402} is an apocalyptic number.

20432100123402 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20432100123402 is an abundant number, since it is smaller than the sum of its proper divisors (24344082735222).

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

20432100123402 is a wasteful number, since it uses less digits than its factorization.

20432100123402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1061063.

The product of its (nonzero) digits is 2304, while the sum is 24.

It can be divided in two parts, 20432100 and 123402, that added together give a palindrome (20555502).

The spelling of 20432100123402 in words is "twenty trillion, four hundred thirty-two billion, one hundred million, one hundred twenty-three thousand, four hundred two".