31402421342004 has 48 divisors (see below), whose sum is σ = 77921240846400. Its totient is φ = 9808719315456.

The previous prime is 31402421341979. The next prime is 31402421342009. The reversal of 31402421342004 is 40024312420413.

It is a super-2 number, since 2×31402421342004² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31402421342009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336052494 + ... + 336145925.

It is an arithmetic number, because the mean of its divisors is an integer number (1623359184300).

Almost surely, 2^{31402421342004} is an apocalyptic number.

31402421342004 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31402421342004 is an abundant number, since it is smaller than the sum of its proper divisors (46518819504396).

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

31402421342004 is a wasteful number, since it uses less digits than its factorization.

31402421342004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672198672 (or 672198670 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 31402421342004 its reverse (40024312420413), we get a palindrome (71426733762417).

The spelling of 31402421342004 in words is "thirty-one trillion, four hundred two billion, four hundred twenty-one million, three hundred forty-two thousand, four".