421120011402 has 12 divisors (see below), whose sum is σ = 912426691410. Its totient is φ = 140373337128.

The previous prime is 421120011401. The next prime is 421120011437. The reversal of 421120011402 is 204110021124.

421120011402 is a `hidden beast` number, since 42 + 11 + 200 + 11 + 402 = 666.

It can be written as a sum of positive squares in only one way, i.e., 373490877321 + 47629134081 = 611139^2 + 218241^2 .

It is a super-2 number, since 2×421120011402² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 23395556189 = 421120011402 / (4 + 2 + 1 + 1 + 2 + 0 + 0 + 1 + 1 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (421120011401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11697778077 + ... + 11697778112.

Almost surely, 2^421120011402 is an apocalyptic number.

421120011402 is an abundant number, since it is smaller than the sum of its proper divisors (491306680008).

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

421120011402 is a wasteful number, since it uses less digits than its factorization.

421120011402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23395556197 (or 23395556194 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 421120011402 its reverse (204110021124), we get a palindrome (625230032526).

The spelling of 421120011402 in words is "four hundred twenty-one billion, one hundred twenty million, eleven thousand, four hundred two".