31421253350 has 48 divisors (see below), whose sum is σ = 61008729120. Its totient is φ = 12017280000.

The previous prime is 31421253349. The next prime is 31421253371. The reversal of 31421253350 is 5335212413.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4597736 + ... + 4604564.

It is an arithmetic number, because the mean of its divisors is an integer number (1271015190).

Almost surely, 2^31421253350 is an apocalyptic number.

31421253350 is a deficient number, since it is larger than the sum of its proper divisors (29587475770).

31421253350 is a wasteful number, since it uses less digits than its factorization.

31421253350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10865 (or 10860 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 31421253350 its reverse (5335212413), we get a palindrome (36756465763).

The spelling of 31421253350 in words is "thirty-one billion, four hundred twenty-one million, two hundred fifty-three thousand, three hundred fifty".