31100121230032 has 10 divisors (see below), whose sum is σ = 60256484883218. Its totient is φ = 15550060615008.

The previous prime is 31100121229997. The next prime is 31100121230047. The reversal of 31100121230032 is 23003212100113.

It can be written as a sum of positive squares in only one way, i.e., 29751308434576 + 1348812795456 = 5454476^2 + 1161384^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31100121229991 and 31100121230009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 971878788423 + ... + 971878788454.

Almost surely, 2^{31100121230032} is an apocalyptic number.

It is an amenable number.

31100121230032 is a deficient number, since it is larger than the sum of its proper divisors (29156363653186).

31100121230032 is a wasteful number, since it uses less digits than its factorization.

31100121230032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1943757576885 (or 1943757576879 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31100121230032 its reverse (23003212100113), we get a palindrome (54103333330145).

The spelling of 31100121230032 in words is "thirty-one trillion, one hundred billion, one hundred twenty-one million, two hundred thirty thousand, thirty-two".