1021023120131 has 32 divisors (see below), whose sum is σ = 1224305805312. Its totient is φ = 833129228160.

The previous prime is 1021023120119. The next prime is 1021023120151. The reversal of 1021023120131 is 1310213201201.

It is a cyclic number.

It is not a de Polignac number, because 1021023120131 - 2¹⁰ = 1021023119107 is a prime.

It is a super-2 number, since 2×1021023120131² (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 (1021023120101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44748716 + ... + 44771526.

It is an arithmetic number, because the mean of its divisors is an integer number (38259556416).

Almost surely, 2^{1021023120131} is an apocalyptic number.

1021023120131 is a deficient number, since it is larger than the sum of its proper divisors (203282685181).

1021023120131 is a wasteful number, since it uses less digits than its factorization.

1021023120131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26579.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1021023120131 its reverse (1310213201201), we get a palindrome (2331236321332).

The spelling of 1021023120131 in words is "one trillion, twenty-one billion, twenty-three million, one hundred twenty thousand, one hundred thirty-one".