1030120001021 has 16 divisors (see below), whose sum is σ = 1085593611840. Its totient is φ = 974772610560.

The previous prime is 1030120001011. The next prime is 1030120001023. The reversal of 1030120001021 is 1201000210301.

It is a cyclic number.

It is not a de Polignac number, because 1030120001021 - 2¹⁸ = 1030119738877 is a prime.

It is a super-2 number, since 2×1030120001021² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030120000993 and 1030120001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030120001023) 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, 123319181 + ... + 123327533.

It is an arithmetic number, because the mean of its divisors is an integer number (67849600740).

Almost surely, 2^{1030120001021} is an apocalyptic number.

It is an amenable number.

1030120001021 is a deficient number, since it is larger than the sum of its proper divisors (55473610819).

1030120001021 is a wasteful number, since it uses less digits than its factorization.

1030120001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15116.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 1030120001021 its reverse (1201000210301), we get a palindrome (2231120211322).

The spelling of 1030120001021 in words is "one trillion, thirty billion, one hundred twenty million, one thousand, twenty-one".