1021201020131 has 16 divisors (see below), whose sum is σ = 1090179256320. Its totient is φ = 953226852480.

The previous prime is 1021201020107. The next prime is 1021201020143. The reversal of 1021201020131 is 1310201021201.

It is a cyclic number.

It is not a de Polignac number, because 1021201020131 - 2¹⁸ = 1021200757987 is a prime.

It is a super-2 number, since 2×1021201020131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021201020101) 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, 2061566 + ... + 2508476.

It is an arithmetic number, because the mean of its divisors is an integer number (68136203520).

Almost surely, 2^{1021201020131} is an apocalyptic number.

1021201020131 is a deficient number, since it is larger than the sum of its proper divisors (68978236189).

1021201020131 is a wasteful number, since it uses less digits than its factorization.

1021201020131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 448034.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1021201020131 its reverse (1310201021201), we get a palindrome (2331402041332).

The spelling of 1021201020131 in words is "one trillion, twenty-one billion, two hundred one million, twenty thousand, one hundred thirty-one".