1321012013101 has 16 divisors (see below), whose sum is σ = 1498792160448. Its totient is φ = 1153762243200.

The previous prime is 1321012013099. The next prime is 1321012013117. The reversal of 1321012013101 is 1013102101231.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1321012013101 - 2¹ = 1321012013099 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321012013131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22863256 + ... + 22920961.

It is an arithmetic number, because the mean of its divisors is an integer number (93674510028).

Almost surely, 2^{1321012013101} is an apocalyptic number.

1321012013101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1321012013101 is a deficient number, since it is larger than the sum of its proper divisors (177780147347).

1321012013101 is a wasteful number, since it uses less digits than its factorization.

1321012013101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45784332.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1321012013101 its reverse (1013102101231), we get a palindrome (2334114114332).

The spelling of 1321012013101 in words is "one trillion, three hundred twenty-one billion, twelve million, thirteen thousand, one hundred one".