31121123001032 has 8 divisors (see below), whose sum is σ = 58352105626950. Its totient is φ = 15560561500512.

The previous prime is 31121123001013. The next prime is 31121123001037. The reversal of 31121123001032 is 23010032112113.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25202869900516 + 5918253100516 = 5020246^2 + 2432746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 31121123000995 and 31121123001013.

It is not an unprimeable number, because it can be changed into a prime (31121123001037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1945070187557 + ... + 1945070187572.

Almost surely, 2^{31121123001032} is an apocalyptic number.

It is an amenable number.

31121123001032 is a deficient number, since it is larger than the sum of its proper divisors (27230982625918).

31121123001032 is a wasteful number, since it uses less digits than its factorization.

31121123001032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3890140375135 (or 3890140375131 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31121123001032 its reverse (23010032112113), we get a palindrome (54131155113145).

The spelling of 31121123001032 in words is "thirty-one trillion, one hundred twenty-one billion, one hundred twenty-three million, one thousand, thirty-two".