31301403421 has 8 divisors (see below), whose sum is σ = 32840818688. Its totient is φ = 29795094000.

The previous prime is 31301403407. The next prime is 31301403433. The reversal of 31301403421 is 12430410313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31301403421 - 2⁷ = 31301403293 is a prime.

It is a super-2 number, since 2×31301403421² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31301403392 and 31301403401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31301403461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8274525 + ... + 8278306.

It is an arithmetic number, because the mean of its divisors is an integer number (4105102336).

Almost surely, 2^31301403421 is an apocalyptic number.

31301403421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

31301403421 is a deficient number, since it is larger than the sum of its proper divisors (1539415267).

31301403421 is a wasteful number, since it uses less digits than its factorization.

31301403421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16552923.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31301403421 its reverse (12430410313), we get a palindrome (43731813734).

The spelling of 31301403421 in words is "thirty-one billion, three hundred one million, four hundred three thousand, four hundred twenty-one".