1420213202431 has 4 divisors (see below), whose sum is σ = 1421320150872. Its totient is φ = 1419106253992.

The previous prime is 1420213202423. The next prime is 1420213202663. The reversal of 1420213202431 is 1342023120241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420213202431 - 2³ = 1420213202423 is a prime.

It is a super-2 number, since 2×1420213202431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1420213202396 and 1420213202405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1420213202831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553472296 + ... + 553474861.

It is an arithmetic number, because the mean of its divisors is an integer number (355330037718).

Almost surely, 2^{1420213202431} is an apocalyptic number.

1420213202431 is a deficient number, since it is larger than the sum of its proper divisors (1106948441).

1420213202431 is a wasteful number, since it uses less digits than its factorization.

1420213202431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106948440.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1420213202431 its reverse (1342023120241), we get a palindrome (2762236322672).

The spelling of 1420213202431 in words is "one trillion, four hundred twenty billion, two hundred thirteen million, two hundred two thousand, four hundred thirty-one".