31521101204114 has 16 divisors (see below), whose sum is σ = 47368096738560. Its totient is φ = 15731760436560.

The previous prime is 31521101204113. The next prime is 31521101204129. The reversal of 31521101204114 is 41140210112513.

It is a super-2 number, since 2×31521101204114² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31521101204111) 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, 3660557 + ... + 8743104.

It is an arithmetic number, because the mean of its divisors is an integer number (2960506046160).

Almost surely, 2^{31521101204114} is an apocalyptic number.

31521101204114 is a deficient number, since it is larger than the sum of its proper divisors (15846995534446).

31521101204114 is a wasteful number, since it uses less digits than its factorization.

31521101204114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12405985.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 31521101204114 its reverse (41140210112513), we get a palindrome (72661311316627).

The spelling of 31521101204114 in words is "thirty-one trillion, five hundred twenty-one billion, one hundred one million, two hundred four thousand, one hundred fourteen".